#91A7AA
Closest named color: Cool Grey (#95A3A6). oklch(71.2% 0.025 206.6), rgb(145, 167, 170).
Aa
Black text reads best on this color (8.31:1).
About this color
#91A7AA is a medium-light close to neutral grey. In OKLCH its lightness is 71%, its chroma 0.025. It has too little chroma to lean warm or cool. The nearest named color is Cool Grey (#95A3A6), ΔE 0.011 away. Black text reads best on it, at 8.31:1.
| Hue family | Neutrals |
| Lightness | medium-light (71%) |
| Chroma | close to neutral grey (0.025) |
| Temperature | neutral |
| Nearest name | Cool Grey (#95A3A6) |
| Black text | 8.31:1 |
| White text | 2.52:1 |
Values
| HEX | #91A7AA |
| RGB | rgb(145, 167, 170) |
| HSL | hsl(187, 13%, 62%) |
| OKLCH | oklch(71.2% 0.025 206.6) |
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 #91A7AA | 2.52:1 | Fails | Lc -54.6 | Large or bold text, headings |
| Black text on #91A7AA | 8.31:1 | AAA | Lc 54.5 | Large or bold text, headings |
| #91A7AA text on white | 2.52:1 | Fails | Lc 49.5 | Large or bold text, headings |
| #91A7AA text on black | 8.31:1 | AAA | Lc -52.4 | 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
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E7EBEB
oklch(93.7% 0.004 197.1)
-
Step 200
200
#D3DBDC
oklch(88.6% 0.009 205.9)
-
Step 300
300
#B6C4C6
oklch(81% 0.016 207.1)
-
Step 400
400 (this color)
#91A7AA
oklch(71.2% 0.025 206.6)
-
Step 500
500
#748F93
oklch(63.1% 0.031 207.4)
-
Step 600
600
#5C797D
oklch(55.5% 0.034 206.7)
-
Step 700
700
#4B666A
oklch(49% 0.032 207.5)
-
Step 800
800
#3E5356
oklch(42.6% 0.026 207.1)
-
Step 900
900
#354547
oklch(37.7% 0.021 205.7)
-
Step 950
950
#1F282A
oklch(26.9% 0.013 212.7)
#91A7AA 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) | #A3A5AA | 0.024 |
| Deuteranopia (no green cones) | #9FA1AA | 0.024 |
| Tritanopia (no blue cones) | #8AA9A8 | 0.011 |
| Achromatopsia (no color) | #A3A3A3 | 0.025 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91A7AA
#91A7AA
oklch(71.2% 0.025 206.6)
- #B19D9A
#B19D9A
oklch(71.3% 0.024 27.9)
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 #91A7AA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Grey #95A3A6 ΔE 0.011
- Pewter #96A8A1 ΔE 0.015
- Cool Steel #97A7B3 ΔE 0.016
- Bluegrey #85A3B2 ΔE 0.024
- Bluey Grey #89A0B0 ΔE 0.027
- Dark Gray #A9A9A9 ΔE 0.034
- Cement #A5A391 ΔE 0.040
- Greyblue #77A1B5 ΔE 0.042
Use #91A7AA 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.