#91ADCF
Closest named color: Cool Steel (#97A7B3). oklch(73.8% 0.058 253.5), rgb(145, 173, 207).
Aa
Black text reads best on this color (9.08:1).
About this color
#91ADCF is a medium-light, muted blue. In OKLCH its lightness is 74%, its chroma 0.058 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Steel (#97A7B3), ΔE 0.039 away. Black text reads best on it, at 9.08:1.
| Hue family | Blues |
| Lightness | medium-light (74%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Cool Steel (#97A7B3) |
| Black text | 9.08:1 |
| White text | 2.31:1 |
Values
| HEX | #91ADCF |
| RGB | rgb(145, 173, 207) |
| HSL | hsl(213, 39%, 69%) |
| OKLCH | oklch(73.8% 0.058 253.5) |
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 #91ADCF | 2.31:1 | Fails | Lc -50.5 | Large or bold text, headings |
| Black text on #91ADCF | 9.08:1 | AAA | Lc 58.4 | Large or bold text, headings |
| #91ADCF text on white | 2.31:1 | Fails | Lc 45.6 | Large or bold text, headings |
| #91ADCF text on black | 9.08:1 | AAA | Lc -56.5 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EAF1
oklch(93.5% 0.011 256.7)
-
Step 200
200
#D0DAE7
oklch(88.5% 0.021 254.9)
-
Step 300
300
#B1C2D8
oklch(80.8% 0.036 254.9)
-
Step 400
400 (this color)
#91ADCF
oklch(73.8% 0.058 253.5)
-
Step 500
500
#698CB6
oklch(63% 0.075 253.4)
-
Step 600
600
#5176A2
oklch(55.7% 0.081 253.4)
-
Step 700
700
#41638B
oklch(49.2% 0.076 253.2)
-
Step 800
800
#365171
oklch(42.8% 0.063 253.3)
-
Step 900
900
#2F435B
oklch(37.7% 0.049 253.5)
-
Step 950
950
#1C2735
oklch(26.9% 0.03 254.7)
#91ADCF 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) | #A1AED1 | 0.021 |
| Deuteranopia (no green cones) | #9AA8CE | 0.016 |
| Tritanopia (no blue cones) | #7FB4B8 | 0.050 |
| Achromatopsia (no color) | #AAAAAA | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91ADCF
#91ADCF
oklch(73.8% 0.058 253.5)
- #C1A582
#C1A582
oklch(73.8% 0.058 72.9)
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 #91ADCF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Steel #97A7B3 ΔE 0.039
- Light Grey Blue #9DBCD4 ΔE 0.044
- Bluegrey #85A3B2 ΔE 0.049
- Bluey Grey #89A0B0 ΔE 0.052
- French Gray #ADB5BD ΔE 0.054
- Light Cornflower Blue #98C1D9 ΔE 0.055
- Cool Grey #95A3A6 ΔE 0.058
- Greyblue #77A1B5 ΔE 0.058
Use #91ADCF 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.