#91C9CF
Closest named color: Light Cornflower Blue (#98C1D9). oklch(79.9% 0.058 204.4), rgb(145, 201, 207).
Aa
Black text reads best on this color (11.45:1).
About this color
#91C9CF is a light, muted teal or cyan. In OKLCH its lightness is 80%, its chroma 0.058 and its hue 204°. Its hue sits on the cool side of the wheel. The nearest named color is Light Cornflower Blue (#98C1D9), ΔE 0.031 away. Black text reads best on it, at 11.45:1.
| Hue family | Teals and cyans |
| Lightness | light (80%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Light Cornflower Blue (#98C1D9) |
| Black text | 11.45:1 |
| White text | 1.83:1 |
Values
| HEX | #91C9CF |
| RGB | rgb(145, 201, 207) |
| HSL | hsl(186, 39%, 69%) |
| OKLCH | oklch(79.9% 0.058 204.4) |
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 #91C9CF | 1.83:1 | Fails | Lc -38.4 | Non-text elements, placeholder text |
| Black text on #91C9CF | 11.45:1 | AAA | Lc 69.6 | Content text, not long reading |
| #91C9CF text on white | 1.83:1 | Fails | Lc 34.3 | Non-text elements, placeholder text |
| #91C9CF text on black | 11.45:1 | AAA | Lc -68.3 | 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
#F0F7F8
oklch(97.1% 0.008 207.1)
-
Step 100
100
#DEEDEF
oklch(93.6% 0.016 206.4)
-
Step 200
200
#C1E0E3
oklch(88.5% 0.033 203.7)
-
Step 300
300 (this color)
#91C9CF
oklch(79.9% 0.058 204.4)
-
Step 400
400
#4EB1BC
oklch(70.6% 0.093 205.2)
-
Step 500
500
#009CA8
oklch(63.2% 0.108 204.4)
-
Step 600
600
#00838D
oklch(55.6% 0.095 204.2)
-
Step 700
700
#006E77
oklch(49.1% 0.084 204.7)
-
Step 800
800
#005A61
oklch(42.6% 0.073 204)
-
Step 900
900
#004B51
oklch(37.6% 0.064 204)
-
Step 950
950
#002D31
oklch(27.1% 0.046 204.1)
#91C9CF 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) | #C0C4CF | 0.058 |
| Deuteranopia (no green cones) | #B5BCCF | 0.053 |
| Tritanopia (no blue cones) | #7BCDCB | 0.026 |
| Achromatopsia (no color) | #BFBFBF | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91C9CF
#91C9CF
oklch(79.9% 0.058 204.4)
- #E1B0AB
#E1B0AB
oklch(80% 0.058 25.2)
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 #91C9CF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Cornflower Blue #98C1D9 ΔE 0.031
- Sky Blue #87CEEB ΔE 0.038
- Light Grey Blue #9DBCD4 ΔE 0.040
- Tiffany Blue #94D2BD ΔE 0.041
- Cloudy Blue #ACC2D9 ΔE 0.042
- Light Steel Blue #B0C4DE ΔE 0.048
- Pale Teal #82CBB2 ΔE 0.048
- Seafoam Blue #78D1B6 ΔE 0.055
Use #91C9CF 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.