#B4B730
Closest named color: Olive Yellow (#C2B709). oklch(75.4% 0.15 110.8), rgb(180, 183, 48).
Aa
Black text reads best on this color (9.75:1).
About this color
#B4B730 is a medium-light, vivid yellow. In OKLCH its lightness is 75%, its chroma 0.150 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 9.75:1.
| Hue family | Yellows |
| Lightness | medium-light (75%) |
| Chroma | vivid (0.150) |
| Temperature | in between |
| Nearest name | Olive Yellow (#C2B709) |
| Black text | 9.75:1 |
| White text | 2.15:1 |
Values
| HEX | #B4B730 |
| RGB | rgb(180, 183, 48) |
| HSL | hsl(61, 58%, 45%) |
| OKLCH | oklch(75.4% 0.15 110.8) |
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 #B4B730 | 2.15:1 | Fails | Lc -46.8 | Large or bold text, headings |
| Black text on #B4B730 | 9.75:1 | AAA | Lc 61.8 | Content text, not long reading |
| #B4B730 text on white | 2.15:1 | Fails | Lc 42.1 | Non-text elements, placeholder text |
| #B4B730 text on black | 9.75:1 | AAA | Lc -60.1 | 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
#EAECD7
oklch(93.6% 0.028 111.3)
-
Step 200
200
#DADDB6
oklch(88.5% 0.052 111)
-
Step 300
300
#C3C77F
oklch(81% 0.094 111)
-
Step 400
400 (this color)
#B4B730
oklch(75.4% 0.15 110.8)
-
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)
#B4B730 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) | #C6AF13 | 0.030 |
| Deuteranopia (no green cones) | #C7B23B | 0.033 |
| Tritanopia (no blue cones) | #C1AB9D | 0.135 |
| Achromatopsia (no color) | #B1B1B1 | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B4B730
#B4B730
oklch(75.4% 0.15 110.8)
- #AF9EFF
#AF9EFF
oklch(75.2% 0.138 290.7)
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 #B4B730, 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 0.025
- Muddy Yellow #BFAC05 ΔE 0.030
- Pea #A4BF20 ΔE 0.033
- Light Olive Green #A4BE5C ΔE 0.035
- Mustard #CEB301 ΔE 0.037
- Bright Olive #9CBB04 ΔE 0.041
- Light Olive #ACBF69 ΔE 0.045
Use #B4B730 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.