#91BFBF
Closest named color: Light Grey Blue (#9DBCD4). oklch(77.2% 0.049 196.2), rgb(145, 191, 191).
Aa
Black text reads best on this color (10.40:1).
About this color
#91BFBF is a medium-light, muted teal or cyan. In OKLCH its lightness is 77%, its chroma 0.049 and its hue 196°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.038 away. Black text reads best on it, at 10.40:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (77%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 10.40:1 |
| White text | 2.01:1 |
Values
| HEX | #91BFBF |
| RGB | rgb(145, 191, 191) |
| HSL | hsl(180, 26%, 66%) |
| OKLCH | oklch(77.2% 0.049 196.2) |
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 #91BFBF | 2.01:1 | Fails | Lc -43.6 | Non-text elements, placeholder text |
| Black text on #91BFBF | 10.40:1 | AAA | Lc 64.8 | Content text, not long reading |
| #91BFBF text on white | 2.01:1 | Fails | Lc 39.1 | Non-text elements, placeholder text |
| #91BFBF text on black | 10.40:1 | AAA | Lc -63.2 | Content text, not long reading |
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 300.
-
Step 50
50
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#E0EDED
oklch(93.6% 0.014 196.9)
-
Step 200
200
#C6DFDF
oklch(88.5% 0.027 196.7)
-
Step 300
300 (this color)
#91BFBF
oklch(77.2% 0.049 196.2)
-
Step 400
400
#61B0B0
oklch(70.7% 0.078 195.5)
-
Step 500
500
#249C9D
oklch(63.1% 0.1 195.8)
-
Step 600
600
#008486
oklch(55.6% 0.095 196.7)
-
Step 700
700
#006F70
oklch(49.1% 0.084 195.9)
-
Step 800
800
#005B5C
oklch(42.7% 0.073 196.1)
-
Step 900
900
#004C4D
oklch(37.8% 0.064 196.3)
-
Step 950
950
#072D2D
oklch(27.2% 0.041 195)
#91BFBF 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) | #B9BABF | 0.051 |
| Deuteranopia (no green cones) | #B0B4BF | 0.047 |
| Tritanopia (no blue cones) | #82C2BF | 0.017 |
| Achromatopsia (no color) | #B6B6B6 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91BFBF
#91BFBF
oklch(77.2% 0.049 196.2)
- #D2A9AA
#D2A9AA
oklch(77.2% 0.048 16.6)
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 #91BFBF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.038
- Light Cornflower Blue #98C1D9 ΔE 0.039
- French Gray #ADB5BD ΔE 0.041
- Pale Teal #82CBB2 ΔE 0.046
- Cloudy Blue #ACC2D9 ΔE 0.052
- Tiffany Blue #94D2BD ΔE 0.055
- Muted Teal #90B494 ΔE 0.059
- Seafoam Blue #78D1B6 ΔE 0.060
Use #91BFBF 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.