#999C01
Closest named color: Pea Soup (#929901). oklch(66.8% 0.147 111.1), rgb(153, 156, 1).
Aa
Black text reads best on this color (7.11:1).
About this color
#999C01 is a medium-light, vivid yellow. In OKLCH its lightness is 67%, 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 Pea Soup (#929901), ΔE 0.014 away. Black text reads best on it, at 7.11:1.
| Hue family | Yellows |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.147) |
| Temperature | in between |
| Nearest name | Pea Soup (#929901) |
| Black text | 7.11:1 |
| White text | 2.95:1 |
Values
| HEX | #999C01 |
| RGB | rgb(153, 156, 1) |
| HSL | hsl(61, 99%, 31%) |
| OKLCH | oklch(66.8% 0.147 111.1) |
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 #999C01 | 2.95:1 | Fails | Lc -61.2 | Content text, not long reading |
| Black text on #999C01 | 7.11:1 | AAA | Lc 48.2 | Large or bold text, headings |
| #999C01 text on white | 2.95:1 | Fails | Lc 55.9 | Large or bold text, headings |
| #999C01 text on black | 7.11:1 | AAA | Lc -45.9 | 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 500.
-
Step 50
50
#F5F6EF
oklch(97% 0.009 113.2)
-
Step 100
100
#EAEBDC
oklch(93.5% 0.02 109.9)
-
Step 200
200
#DADCBE
oklch(88.5% 0.04 110.3)
-
Step 300
300
#C2C690
oklch(81% 0.072 111.4)
-
Step 400
400
#A3A74C
oklch(70.6% 0.115 111.3)
-
Step 500
500 (this color)
#999C01
oklch(66.8% 0.147 111.1)
-
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
#515300
oklch(42.6% 0.094 111.4)
-
Step 900
900
#444500
oklch(37.7% 0.083 110.7)
-
Step 950
950
#282900
oklch(27.1% 0.06 111.2)
#999C01 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) | #A99400 | 0.031 |
| Deuteranopia (no green cones) | #AA981B | 0.030 |
| Tritanopia (no blue cones) | #A59184 | 0.132 |
| Achromatopsia (no color) | #969696 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #999C01
#999C01
oklch(66.8% 0.147 111.1)
- #9682E7
#9682E7
oklch(66.8% 0.147 291)
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 #999C01, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pea Soup #929901 ΔE 0.014
- Pea Soup Green #94A617 ΔE 0.026
- Avocado Green #87A922 ΔE 0.039
- Brown Yellow #B29705 ΔE 0.040
- Pea Green #8EAB12 ΔE 0.041
- Icky Green #8FAE22 ΔE 0.048
- Dark Gold #B59410 ΔE 0.048
- Yellow Brown #B79400 ΔE 0.050
Use #999C01 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.