#B3B91F
Closest named color: Olive Yellow (#C2B709). oklch(75.6% 0.16 112.1), rgb(179, 185, 31).
Aa
Black text reads best on this color (9.87:1).
About this color
#B3B91F is a medium-light, vivid yellow. In OKLCH its lightness is 76%, its chroma 0.160 and its hue 112°. 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 9.87:1.
| Hue family | Yellows |
| Lightness | medium-light (76%) |
| Chroma | vivid (0.160) |
| Temperature | in between |
| Nearest name | Olive Yellow (#C2B709) |
| Black text | 9.87:1 |
| White text | 2.12:1 |
Values
| HEX | #B3B91F |
| RGB | rgb(179, 185, 31) |
| HSL | hsl(62, 71%, 42%) |
| OKLCH | oklch(75.6% 0.16 112.1) |
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 #B3B91F | 2.12:1 | Fails | Lc -46.2 | Large or bold text, headings |
| Black text on #B3B91F | 9.87:1 | AAA | Lc 62.4 | Content text, not long reading |
| #B3B91F text on white | 2.12:1 | Fails | Lc 41.5 | Non-text elements, placeholder text |
| #B3B91F 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
#F5F7EC
oklch(97.2% 0.015 115)
-
Step 100
100
#EAECD6
oklch(93.6% 0.029 111.2)
-
Step 200
200
#D9DDB4
oklch(88.4% 0.054 112)
-
Step 300
300
#C2C77A
oklch(80.8% 0.1 111.6)
-
Step 400
400 (this color)
#B3B91F
oklch(75.6% 0.16 112.1)
-
Step 500
500
#8C9100
oklch(63.1% 0.14 112.2)
-
Step 600
600
#767A00
oklch(55.7% 0.123 112.1)
-
Step 700
700
#636600
oklch(49.1% 0.109 111.8)
-
Step 800
800
#515300
oklch(42.6% 0.094 111.4)
-
Step 900
900
#434500
oklch(37.6% 0.083 111.6)
-
Step 950
950
#272900
oklch(27% 0.06 112.6)
#B3B91F 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) | #C8B000 | 0.035 |
| Deuteranopia (no green cones) | #C8B32F | 0.037 |
| Tritanopia (no blue cones) | #C0AD9E | 0.143 |
| Achromatopsia (no color) | #B2B2B2 | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B3B91F
#B3B91F
oklch(75.6% 0.16 112.1)
- #B29FFF
#B29FFF
oklch(75.7% 0.136 291.9)
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 #B3B91F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Yellow #C2B709 ΔE 0.021
- Mustard Green #A8B504 ΔE 0.021
- Pea #A4BF20 ΔE 0.025
- Bright Olive #9CBB04 ΔE 0.034
- Muddy Yellow #BFAC05 ΔE 0.035
- Mustard #CEB301 ΔE 0.040
- Light Olive Green #A4BE5C ΔE 0.040
- Mustard Yellow #D2BD0A ΔE 0.047
Use #B3B91F 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.