#91A8C7
Closest named color: Cool Steel (#97A7B3). oklch(72.5% 0.052 255.9), rgb(145, 168, 199).
Aa
Black text reads best on this color (8.62:1).
About this color
#91A8C7 is a medium-light, muted blue. In OKLCH its lightness is 72%, its chroma 0.052 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Steel (#97A7B3), ΔE 0.029 away. Black text reads best on it, at 8.62:1.
| Hue family | Blues |
| Lightness | medium-light (72%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Cool Steel (#97A7B3) |
| Black text | 8.62:1 |
| White text | 2.43:1 |
Values
| HEX | #91A8C7 |
| RGB | rgb(145, 168, 199) |
| HSL | hsl(214, 33%, 67%) |
| OKLCH | oklch(72.5% 0.052 255.9) |
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 #91A8C7 | 2.43:1 | Fails | Lc -52.9 | Large or bold text, headings |
| Black text on #91A8C7 | 8.62:1 | AAA | Lc 56.1 | Large or bold text, headings |
| #91A8C7 text on white | 2.43:1 | Fails | Lc 47.9 | Large or bold text, headings |
| #91A8C7 text on black | 8.62:1 | AAA | Lc -54.1 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E6EAF0
oklch(93.6% 0.009 258.3)
-
Step 200
200
#D2DAE5
oklch(88.6% 0.017 256.3)
-
Step 300
300
#B3C2D6
oklch(80.9% 0.033 255.6)
-
Step 400
400 (this color)
#91A8C7
oklch(72.5% 0.052 255.9)
-
Step 500
500
#6F8BB2
oklch(63% 0.067 256.7)
-
Step 600
600
#57759D
oklch(55.6% 0.072 255.8)
-
Step 700
700
#476287
oklch(49.1% 0.068 256.4)
-
Step 800
800
#3A506D
oklch(42.6% 0.056 255.6)
-
Step 900
900
#324359
oklch(37.8% 0.044 255.1)
-
Step 950
950
#1E2734
oklch(27% 0.028 257.5)
#91A8C7 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) | #9DA9C9 | 0.017 |
| Deuteranopia (no green cones) | #97A4C6 | 0.012 |
| Tritanopia (no blue cones) | #82AFB2 | 0.046 |
| Achromatopsia (no color) | #A6A6A6 | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91A8C7
#91A8C7
oklch(72.5% 0.052 255.9)
- #B9A282
#B9A282
oklch(72.4% 0.052 75.9)
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 #91A8C7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Steel #97A7B3 ΔE 0.029
- Bluegrey #85A3B2 ΔE 0.036
- Bluey Grey #89A0B0 ΔE 0.038
- Cool Grey #95A3A6 ΔE 0.046
- Greyblue #77A1B5 ΔE 0.046
- Cool Gray #8D99AE ΔE 0.048
- Dark Gray #A9A9A9 ΔE 0.053
- Pewter #96A8A1 ΔE 0.056
Use #91A8C7 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.