#BDBF31
Closest named color: Olive Yellow (#C2B709). oklch(77.9% 0.155 110.3), rgb(189, 191, 49).
Aa
Black text reads best on this color (10.66:1).
About this color
#BDBF31 is a medium-light, vivid yellow. In OKLCH its lightness is 78%, its chroma 0.155 and its hue 110°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Olive Yellow (#C2B709), ΔE 0.021 away. Black text reads best on it, at 10.66:1.
| Hue family | Yellows |
| Lightness | medium-light (78%) |
| Chroma | vivid (0.155) |
| Temperature | in between |
| Nearest name | Olive Yellow (#C2B709) |
| Black text | 10.66:1 |
| White text | 1.96:1 |
Values
| HEX | #BDBF31 |
| RGB | rgb(189, 191, 49) |
| HSL | hsl(61, 59%, 47%) |
| OKLCH | oklch(77.9% 0.155 110.3) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #BDBF31 | 1.96:1 | Fails | Lc -42.2 | Non-text elements, placeholder text |
| Black text on #BDBF31 | 10.66:1 | AAA | Lc 66.1 | Content text, not long reading |
| #BDBF31 text on white | 1.96:1 | Fails | Lc 37.9 | Non-text elements, placeholder text |
| #BDBF31 text on black | 10.66:1 | AAA | Lc -64.6 | Content text, not long reading |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 300.
-
Step 50
50
#F6F7E7
oklch(97.1% 0.021 109.7)
-
Step 100
100
#EBEDCB
oklch(93.6% 0.045 110)
-
Step 200
200
#DCDF9C
oklch(88.6% 0.087 110.2)
-
Step 300
300 (this color)
#BDBF31
oklch(77.9% 0.155 110.3)
-
Step 400
400
#A7A800
oklch(70.7% 0.155 110.2)
-
Step 500
500
#8F9000
oklch(63.2% 0.138 110.3)
-
Step 600
600
#787900
oklch(55.7% 0.122 110.4)
-
Step 700
700
#656500
oklch(49.1% 0.107 109.8)
-
Step 800
800
#525300
oklch(42.7% 0.094 110.6)
-
Step 900
900
#444500
oklch(37.7% 0.083 110.7)
-
Step 950
950
#282900
oklch(27.1% 0.06 111.2)
#BDBF31 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #CEB710 | 0.029 |
| Deuteranopia (no green cones) | #D0BB3D | 0.032 |
| Tritanopia (no blue cones) | #CAB3A4 | 0.139 |
| Achromatopsia (no color) | #B9B9B9 | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BDBF31
#BDBF31
oklch(77.9% 0.155 110.3)
- #B6A9FF
#B6A9FF
oklch(77.8% 0.121 290.2)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #BDBF31, closest first.
No curated palette has a color within ΔE 0.04 of #BDBF31.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Yellow #C2B709 ΔE 0.021
- Mustard Yellow #D2BD0A ΔE 0.030
- Mustard #CEB301 ΔE 0.035
- Pea #A4BF20 ΔE 0.037
- Dark Yellow #D5B60A ΔE 0.038
- Light Olive Green #A4BE5C ΔE 0.043
- Mustard Green #A8B504 ΔE 0.044
- Light Olive #ACBF69 ΔE 0.048
Use #BDBF31 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.