#BBB603
Closest named color: Olive Yellow (#C2B709). oklch(75.6% 0.162 107.7), rgb(187, 182, 3).
Aa
Black text reads best on this color (9.80:1).
About this color
#BBB603 is a medium-light, vivid yellow. In OKLCH its lightness is 76%, its chroma 0.162 and its hue 108°. Its hue sits on the warm side of the wheel. The nearest named color is Olive Yellow (#C2B709), ΔE 0.011 away. Black text reads best on it, at 9.80:1.
| Hue family | Yellows |
| Lightness | medium-light (76%) |
| Chroma | vivid (0.162) |
| Temperature | warm |
| Nearest name | Olive Yellow (#C2B709) |
| Black text | 9.80:1 |
| White text | 2.14:1 |
Values
| HEX | #BBB603 |
| RGB | rgb(187, 182, 3) |
| HSL | hsl(58, 97%, 37%) |
| OKLCH | oklch(75.6% 0.162 107.7) |
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 #BBB603 | 2.14:1 | Fails | Lc -46.5 | Large or bold text, headings |
| Black text on #BBB603 | 9.80:1 | AAA | Lc 62.1 | Content text, not long reading |
| #BBB603 text on white | 2.14:1 | Fails | Lc 41.8 | Non-text elements, placeholder text |
| #BBB603 text on black | 9.80:1 | AAA | Lc -60.4 | 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 400.
-
Step 50
50
#F6F6EC
oklch(97% 0.013 106.6)
-
Step 100
100
#EBECD6
oklch(93.6% 0.029 109.1)
-
Step 200
200
#DCDCB2
oklch(88.4% 0.055 107.5)
-
Step 300
300
#C7C677
oklch(81% 0.101 107.8)
-
Step 400
400 (this color)
#BBB603
oklch(75.6% 0.162 107.7)
-
Step 500
500
#928E00
oklch(63% 0.136 107.7)
-
Step 600
600
#7B7800
oklch(55.7% 0.12 108)
-
Step 700
700
#676400
oklch(49% 0.105 107.7)
-
Step 800
800
#545200
oklch(42.7% 0.092 108.1)
-
Step 900
900
#464400
oklch(37.6% 0.081 107.8)
-
Step 950
950
#2A2800
oklch(27% 0.058 106.8)
#BBB603 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) | #C6AE00 | 0.025 |
| Deuteranopia (no green cones) | #C9B421 | 0.025 |
| Tritanopia (no blue cones) | #CAA99B | 0.148 |
| Achromatopsia (no color) | #B1B1B1 | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BBB603
#BBB603
oklch(75.6% 0.162 107.7)
- #ACA1FF
#ACA1FF
oklch(75.5% 0.133 288.1)
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 #BBB603, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Yellow #C2B709 ΔE 0.011
- Muddy Yellow #BFAC05 ΔE 0.027
- Mustard Green #A8B504 ΔE 0.028
- Mustard #CEB301 ΔE 0.029
- Pea #A4BF20 ΔE 0.036
- Dark Yellow #D5B60A ΔE 0.040
- Mustard Yellow #D2BD0A ΔE 0.040
- Bright Olive #9CBB04 ΔE 0.044
Use #BBB603 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.