#999E91
Closest named color: Cement (#A5A391). oklch(69.1% 0.019 124.1), rgb(153, 158, 145).
Aa
Black text reads best on this color (7.65:1).
About this color
#999E91 is a medium-light close to neutral grey. In OKLCH its lightness is 69%, its chroma 0.019. It has too little chroma to lean warm or cool. The nearest named color is Cement (#A5A391), ΔE 0.023 away. Black text reads best on it, at 7.65:1.
| Hue family | Neutrals |
| Lightness | medium-light (69%) |
| Chroma | close to neutral grey (0.019) |
| Temperature | neutral |
| Nearest name | Cement (#A5A391) |
| Black text | 7.65:1 |
| White text | 2.74:1 |
Values
| HEX | #999E91 |
| RGB | rgb(153, 158, 145) |
| HSL | hsl(83, 6%, 59%) |
| OKLCH | oklch(69.1% 0.019 124.1) |
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 #999E91 | 2.74:1 | Fails | Lc -58.3 | Large or bold text, headings |
| Black text on #999E91 | 7.65:1 | AAA | Lc 51.0 | Large or bold text, headings |
| #999E91 text on white | 2.74:1 | Fails | Lc 53.1 | Large or bold text, headings |
| #999E91 text on black | 7.65:1 | AAA | Lc -48.8 | 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
#F5F6F4
oklch(97.2% 0.003 128.5)
-
Step 100
100
#E9EAE8
oklch(93.6% 0.003 128.5)
-
Step 200
200
#D8DAD5
oklch(88.5% 0.007 124.5)
-
Step 300
300
#BFC2BA
oklch(80.9% 0.012 123.5)
-
Step 400
400 (this color)
#999E91
oklch(69.1% 0.019 124.1)
-
Step 500
500
#868C7C
oklch(63% 0.024 123.9)
-
Step 600
600
#707665
oklch(55.6% 0.027 123.1)
-
Step 700
700
#5E6354
oklch(49.1% 0.024 122.3)
-
Step 800
800
#4C5145
oklch(42.7% 0.02 125.7)
-
Step 900
900
#40433A
oklch(37.7% 0.015 122.2)
-
Step 950
950
#252722
oklch(26.9% 0.01 124.9)
#999E91 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) | #A09C90 | 0.011 |
| Deuteranopia (no green cones) | #9F9C91 | 0.010 |
| Tritanopia (no blue cones) | #9A9D9A | 0.015 |
| Achromatopsia (no color) | #9C9C9C | 0.020 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #999E91
#999E91
oklch(69.1% 0.019 124.1)
- #9E99A6
#9E99A6
oklch(69.1% 0.02 303.3)
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 #999E91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cement #A5A391 ΔE 0.023
- Cool Grey #95A3A6 ΔE 0.029
- Pewter #96A8A1 ΔE 0.029
- Stone #ADA587 ΔE 0.040
- Grey Green #86A17D ΔE 0.043
- Bland #AFA88B ΔE 0.046
- Bluey Grey #89A0B0 ΔE 0.047
- Cool Steel #97A7B3 ΔE 0.047
Use #999E91 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.