#B5B804
Closest named color: Olive Yellow (#C2B709). oklch(75.5% 0.165 110.9), rgb(181, 184, 4).
Aa
Black text reads best on this color (9.82:1).
About this color
#B5B804 is a medium-light, vivid yellow. In OKLCH its lightness is 76%, its chroma 0.165 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 0.019 away. Black text reads best on it, at 9.82:1.
| Hue family | Yellows |
| Lightness | medium-light (76%) |
| Chroma | vivid (0.165) |
| Temperature | in between |
| Nearest name | Olive Yellow (#C2B709) |
| Black text | 9.82:1 |
| White text | 2.13:1 |
Values
| HEX | #B5B804 |
| RGB | rgb(181, 184, 4) |
| HSL | hsl(61, 96%, 37%) |
| OKLCH | oklch(75.5% 0.165 110.9) |
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 #B5B804 | 2.13:1 | Fails | Lc -46.4 | Large or bold text, headings |
| Black text on #B5B804 | 9.82:1 | AAA | Lc 62.2 | Content text, not long reading |
| #B5B804 text on white | 2.13:1 | Fails | Lc 41.8 | Non-text elements, placeholder text |
| #B5B804 text on black | 9.82:1 | AAA | Lc -60.5 | 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
#EAECD6
oklch(93.6% 0.029 111.2)
-
Step 200
200
#DADDB2
oklch(88.4% 0.057 110.8)
-
Step 300
300
#C3C777
oklch(80.9% 0.103 111)
-
Step 400
400 (this color)
#B5B804
oklch(75.5% 0.165 110.9)
-
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)
#B5B804 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) | #C8AF00 | 0.035 |
| Deuteranopia (no green cones) | #C9B322 | 0.035 |
| Tritanopia (no blue cones) | #C3AC9C | 0.148 |
| Achromatopsia (no color) | #B1B1B1 | 0.165 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B5B804
#B5B804
oklch(75.5% 0.165 110.9)
- #B09FFF
#B09FFF
oklch(75.5% 0.136 290.9)
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 #B5B804, closest first.
No curated palette has a color within ΔE 0.04 of #B5B804.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Yellow #C2B709 ΔE 0.019
- Mustard Green #A8B504 ΔE 0.021
- Pea #A4BF20 ΔE 0.027
- Muddy Yellow #BFAC05 ΔE 0.034
- Bright Olive #9CBB04 ΔE 0.034
- Mustard #CEB301 ΔE 0.038
- Mustard Yellow #D2BD0A ΔE 0.046
- Light Olive Green #A4BE5C ΔE 0.046
Use #B5B804 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.