#91A7C8
Closest named color: Cool Steel (#97A7B3). oklch(72.3% 0.054 258.4), rgb(145, 167, 200).
Aa
Black text reads best on this color (8.56:1).
About this color
#91A7C8 is a medium-light, muted blue. In OKLCH its lightness is 72%, its chroma 0.054 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Steel (#97A7B3), ΔE 0.031 away. Black text reads best on it, at 8.56:1.
| Hue family | Blues |
| Lightness | medium-light (72%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Cool Steel (#97A7B3) |
| Black text | 8.56:1 |
| White text | 2.45:1 |
Values
| HEX | #91A7C8 |
| RGB | rgb(145, 167, 200) |
| HSL | hsl(216, 33%, 68%) |
| OKLCH | oklch(72.3% 0.054 258.4) |
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 #91A7C8 | 2.45:1 | Fails | Lc -53.2 | Large or bold text, headings |
| Black text on #91A7C8 | 8.56:1 | AAA | Lc 55.8 | Large or bold text, headings |
| #91A7C8 text on white | 2.45:1 | Fails | Lc 48.2 | Large or bold text, headings |
| #91A7C8 text on black | 8.56:1 | AAA | Lc -53.8 | 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
#F4F6F8
oklch(97.2% 0.003 247.9)
-
Step 100
100
#E6EAF1
oklch(93.6% 0.01 261.8)
-
Step 200
200
#D2DAE6
oklch(88.6% 0.019 258.4)
-
Step 300
300
#B4C2D7
oklch(81% 0.033 258.4)
-
Step 400
400 (this color)
#91A7C8
oklch(72.3% 0.054 258.4)
-
Step 500
500
#708BB4
oklch(63.2% 0.069 258.6)
-
Step 600
600
#58749F
oklch(55.5% 0.075 258.8)
-
Step 700
700
#486288
oklch(49.2% 0.069 257.8)
-
Step 800
800
#3B506F
oklch(42.8% 0.058 258)
-
Step 900
900
#33425A
oklch(37.7% 0.046 259.6)
-
Step 950
950
#1E2734
oklch(27% 0.028 257.5)
#91A7C8 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) | #9CA8CA | 0.015 |
| Deuteranopia (no green cones) | #96A3C7 | 0.012 |
| Tritanopia (no blue cones) | #82AEB2 | 0.048 |
| Achromatopsia (no color) | #A5A5A5 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91A7C8
#91A7C8
oklch(72.3% 0.054 258.4)
- #B8A27F
#B8A27F
oklch(72.3% 0.055 79.2)
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 #91A7C8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Steel #97A7B3 ΔE 0.031
- Bluegrey #85A3B2 ΔE 0.037
- Bluey Grey #89A0B0 ΔE 0.038
- Greyblue #77A1B5 ΔE 0.046
- Cool Gray #8D99AE ΔE 0.047
- Cool Grey #95A3A6 ΔE 0.048
- Dark Gray #A9A9A9 ΔE 0.055
- Pewter #96A8A1 ΔE 0.058
Use #91A7C8 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.