#B5B837
Closest named color: Olive Yellow (#C2B709). oklch(75.7% 0.147 110.8), rgb(181, 184, 55).
Aa
Black text reads best on this color (9.87:1).
About this color
#B5B837 is a medium-light, vivid yellow. In OKLCH its lightness is 76%, its chroma 0.147 and its hue 111°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Olive Yellow (#C2B709), ΔE 0.022 away. Black text reads best on it, at 9.87:1.
| Hue family | Yellows |
| Lightness | medium-light (76%) |
| Chroma | vivid (0.147) |
| Temperature | in between |
| Nearest name | Olive Yellow (#C2B709) |
| Black text | 9.87:1 |
| White text | 2.12:1 |
Values
| HEX | #B5B837 |
| RGB | rgb(181, 184, 55) |
| HSL | hsl(61, 54%, 47%) |
| OKLCH | oklch(75.7% 0.147 110.8) |
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 #B5B837 | 2.12:1 | Fails | Lc -46.2 | Large or bold text, headings |
| Black text on #B5B837 | 9.87:1 | AAA | Lc 62.4 | Content text, not long reading |
| #B5B837 text on white | 2.12:1 | Fails | Lc 41.6 | Non-text elements, placeholder text |
| #B5B837 text on black | 9.87:1 | AAA | Lc -60.7 | 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
#F6F6ED
oklch(97.1% 0.012 106.6)
-
Step 100
100
#EAECD8
oklch(93.6% 0.027 111.5)
-
Step 200
200
#DADDB7
oklch(88.5% 0.051 111.1)
-
Step 300
300
#C3C780
oklch(81% 0.093 111)
-
Step 400
400 (this color)
#B5B837
oklch(75.7% 0.147 110.8)
-
Step 500
500
#8E9000
oklch(63.1% 0.138 110.8)
-
Step 600
600
#777900
oklch(55.6% 0.122 110.9)
-
Step 700
700
#646600
oklch(49.2% 0.108 111.1)
-
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)
#B5B837 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) | #C6B021 | 0.029 |
| Deuteranopia (no green cones) | #C7B341 | 0.032 |
| Tritanopia (no blue cones) | #C2AD9F | 0.131 |
| Achromatopsia (no color) | #B2B2B2 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B5B837
#B5B837
oklch(75.7% 0.147 110.8)
- #B0A0FF
#B0A0FF
oklch(75.7% 0.135 290.5)
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 #B5B837, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Yellow #C2B709 ΔE 0.022
- Mustard Green #A8B504 ΔE 0.030
- Muddy Yellow #BFAC05 ΔE 0.032
- Light Olive Green #A4BE5C ΔE 0.032
- Pea #A4BF20 ΔE 0.035
- Mustard #CEB301 ΔE 0.037
- Light Olive #ACBF69 ΔE 0.041
- Bright Olive #9CBB04 ΔE 0.044
Use #B5B837 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.