#B4B623
Closest named color: Olive Yellow (#C2B709). oklch(75.1% 0.155 110.5), rgb(180, 182, 35).
Aa
Black text reads best on this color (9.65:1).
About this color
#B4B623 is a medium-light, vivid yellow. In OKLCH its lightness is 75%, its chroma 0.155 and its hue 110°. 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 9.65:1.
| Hue family | Yellows |
| Lightness | medium-light (75%) |
| Chroma | vivid (0.155) |
| Temperature | in between |
| Nearest name | Olive Yellow (#C2B709) |
| Black text | 9.65:1 |
| White text | 2.17:1 |
Values
| HEX | #B4B623 |
| RGB | rgb(180, 182, 35) |
| HSL | hsl(61, 68%, 43%) |
| OKLCH | oklch(75.1% 0.155 110.5) |
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 #B4B623 | 2.17:1 | Fails | Lc -47.3 | Large or bold text, headings |
| Black text on #B4B623 | 9.65:1 | AAA | Lc 61.3 | Content text, not long reading |
| #B4B623 text on white | 2.17:1 | Fails | Lc 42.6 | Non-text elements, placeholder text |
| #B4B623 text on black | 9.65:1 | AAA | Lc -59.6 | Large or bold text, headings |
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
#DADDB4
oklch(88.5% 0.054 110.9)
-
Step 300
300
#C4C77C
oklch(81% 0.097 110.3)
-
Step 400
400 (this color)
#B4B623
oklch(75.1% 0.155 110.5)
-
Step 500
500
#8F9000
oklch(63.2% 0.138 110.3)
-
Step 600
600
#787900
oklch(55.7% 0.122 110.4)
-
Step 700
700
#646500
oklch(49% 0.107 110.5)
-
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)
#B4B623 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) | #C5AE00 | 0.029 |
| Deuteranopia (no green cones) | #C6B231 | 0.031 |
| Tritanopia (no blue cones) | #C1AA9C | 0.140 |
| Achromatopsia (no color) | #B0B0B0 | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B4B623
#B4B623
oklch(75.1% 0.155 110.5)
- #AE9EFF
#AE9EFF
oklch(75.1% 0.138 290.3)
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 #B4B623, 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
- Muddy Yellow #BFAC05 ΔE 0.028
- Pea #A4BF20 ΔE 0.032
- Mustard #CEB301 ΔE 0.037
- Bright Olive #9CBB04 ΔE 0.038
- Light Olive Green #A4BE5C ΔE 0.040
- Dark Yellow #D5B60A ΔE 0.048
Use #B4B623 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.