#91AEB3
Closest named color: Cool Steel (#97A7B3). oklch(73.1% 0.033 209.2), rgb(145, 174, 179).
Aa
Black text reads best on this color (8.90:1).
About this color
#91AEB3 is a medium-light, muted teal or cyan. In OKLCH its lightness is 73%, its chroma 0.033 and its hue 209°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Steel (#97A7B3), ΔE 0.020 away. Black text reads best on it, at 8.90:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (73%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Cool Steel (#97A7B3) |
| Black text | 8.90:1 |
| White text | 2.35:1 |
Values
| HEX | #91AEB3 |
| RGB | rgb(145, 174, 179) |
| HSL | hsl(189, 18%, 64%) |
| OKLCH | oklch(73.1% 0.033 209.2) |
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 #91AEB3 | 2.35:1 | Fails | Lc -51.4 | Large or bold text, headings |
| Black text on #91AEB3 | 8.90:1 | AAA | Lc 57.5 | Large or bold text, headings |
| #91AEB3 text on white | 2.35:1 | Fails | Lc 46.5 | Large or bold text, headings |
| #91AEB3 text on black | 8.90:1 | AAA | Lc -55.6 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E6EBEC
oklch(93.7% 0.006 211)
-
Step 200
200
#D1DBDD
oklch(88.4% 0.011 211)
-
Step 300
300
#B2C5C8
oklch(81% 0.021 208.1)
-
Step 400
400 (this color)
#91AEB3
oklch(73.1% 0.033 209.2)
-
Step 500
500
#6C9197
oklch(63.1% 0.042 208.5)
-
Step 600
600
#537B82
oklch(55.6% 0.046 209.6)
-
Step 700
700
#44686E
oklch(49.2% 0.042 209)
-
Step 800
800
#385459
oklch(42.6% 0.034 209.8)
-
Step 900
900
#314649
oklch(37.8% 0.027 207.1)
-
Step 950
950
#1D292B
oklch(27.1% 0.017 208.8)
#91AEB3 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) | #A9ACB3 | 0.032 |
| Deuteranopia (no green cones) | #A3A7B3 | 0.029 |
| Tritanopia (no blue cones) | #87B1AF | 0.017 |
| Achromatopsia (no color) | #A9A9A9 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91AEB3
#91AEB3
oklch(73.1% 0.033 209.2)
- #BCA19C
#BCA19C
oklch(73.1% 0.033 30.3)
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 #91AEB3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Steel #97A7B3 ΔE 0.020
- Pewter #96A8A1 ΔE 0.026
- Cool Grey #95A3A6 ΔE 0.030
- Dark Gray #A9A9A9 ΔE 0.033
- Bluegrey #85A3B2 ΔE 0.036
- Bluey Grey #89A0B0 ΔE 0.041
- French Gray #ADB5BD ΔE 0.045
- Cement #A5A391 ΔE 0.051
Use #91AEB3 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.