#91B1BE
Closest named color: Cool Steel (#97A7B3). oklch(74.1% 0.04 224.5), rgb(145, 177, 190).
Aa
Black text reads best on this color (9.23:1).
About this color
#91B1BE is a medium-light, muted teal or cyan. In OKLCH its lightness is 74%, its chroma 0.040 and its hue 224°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Steel (#97A7B3), ΔE 0.027 away. Black text reads best on it, at 9.23:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (74%) |
| Chroma | muted (0.040) |
| Temperature | cool |
| Nearest name | Cool Steel (#97A7B3) |
| Black text | 9.23:1 |
| White text | 2.27:1 |
Values
| HEX | #91B1BE |
| RGB | rgb(145, 177, 190) |
| HSL | hsl(197, 26%, 66%) |
| OKLCH | oklch(74.1% 0.04 224.5) |
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 #91B1BE | 2.27:1 | Fails | Lc -49.7 | Large or bold text, headings |
| Black text on #91B1BE | 9.23:1 | AAA | Lc 59.2 | Large or bold text, headings |
| #91B1BE text on white | 2.27:1 | Fails | Lc 44.8 | Non-text elements, placeholder text |
| #91B1BE text on black | 9.23:1 | AAA | Lc -57.3 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBED
oklch(93.6% 0.007 219.6)
-
Step 200
200
#D0DBE0
oklch(88.5% 0.014 226.6)
-
Step 300
300
#B0C4CD
oklch(80.8% 0.025 226.6)
-
Step 400
400 (this color)
#91B1BE
oklch(74.1% 0.04 224.5)
-
Step 500
500
#6890A1
oklch(63% 0.051 226.1)
-
Step 600
600
#4F7B8C
oklch(55.8% 0.055 224.4)
-
Step 700
700
#3F6777
oklch(49.1% 0.052 225.4)
-
Step 800
800
#345460
oklch(42.6% 0.042 223.7)
-
Step 900
900
#2E464F
oklch(37.8% 0.033 223.4)
-
Step 950
950
#1B292E
oklch(27% 0.021 222)
#91B1BE 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) | #AAAFBF | 0.033 |
| Deuteranopia (no green cones) | #A3AABE | 0.029 |
| Tritanopia (no blue cones) | #84B5B5 | 0.025 |
| Achromatopsia (no color) | #ACACAC | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91B1BE
#91B1BE
oklch(74.1% 0.04 224.5)
- #C2A497
#C2A497
oklch(74.2% 0.04 44.8)
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 #91B1BE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Steel #97A7B3 ΔE 0.027
- French Gray #ADB5BD ΔE 0.039
- Dark Gray #A9A9A9 ΔE 0.040
- Pewter #96A8A1 ΔE 0.041
- Light Grey Blue #9DBCD4 ΔE 0.042
- Cool Grey #95A3A6 ΔE 0.043
- Bluegrey #85A3B2 ΔE 0.043
- Bluey Grey #89A0B0 ΔE 0.049
Use #91B1BE 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.