#91AFD3
Closest named color: Light Grey Blue (#9DBCD4). oklch(74.4% 0.062 253.2), rgb(145, 175, 211).
Aa
Black text reads best on this color (9.27:1).
About this color
#91AFD3 is a medium-light, muted blue. In OKLCH its lightness is 74%, its chroma 0.062 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.040 away. Black text reads best on it, at 9.27:1.
| Hue family | Blues |
| Lightness | medium-light (74%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 9.27:1 |
| White text | 2.26:1 |
Values
| HEX | #91AFD3 |
| RGB | rgb(145, 175, 211) |
| HSL | hsl(213, 43%, 70%) |
| OKLCH | oklch(74.4% 0.062 253.2) |
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 #91AFD3 | 2.26:1 | Fails | Lc -49.4 | Large or bold text, headings |
| Black text on #91AFD3 | 9.27:1 | AAA | Lc 59.4 | Large or bold text, headings |
| #91AFD3 text on white | 2.26:1 | Fails | Lc 44.6 | Non-text elements, placeholder text |
| #91AFD3 text on black | 9.27:1 | AAA | Lc -57.5 | 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
#B0C3DA
oklch(81% 0.039 253.3)
-
Step 400
400 (this color)
#91AFD3
oklch(74.4% 0.062 253.2)
-
Step 500
500
#678CB9
oklch(63% 0.08 253.8)
-
Step 600
600
#4E76A5
oklch(55.7% 0.086 253.2)
-
Step 700
700
#3F638D
oklch(49.1% 0.08 253.1)
-
Step 800
800
#345172
oklch(42.7% 0.065 252.5)
-
Step 900
900
#2E435C
oklch(37.7% 0.051 253.3)
-
Step 950
950
#1B2736
oklch(26.9% 0.033 254.4)
#91AFD3 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) | #A2B0D5 | 0.023 |
| Deuteranopia (no green cones) | #9AA9D2 | 0.018 |
| Tritanopia (no blue cones) | #7DB7BB | 0.054 |
| Achromatopsia (no color) | #ACACAC | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91AFD3
#91AFD3
oklch(74.4% 0.062 253.2)
- #C4A781
#C4A781
oklch(74.5% 0.062 74.1)
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 #91AFD3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.040
- Cool Steel #97A7B3 ΔE 0.045
- Light Cornflower Blue #98C1D9 ΔE 0.050
- French Gray #ADB5BD ΔE 0.054
- Bluegrey #85A3B2 ΔE 0.055
- Bluey Grey #89A0B0 ΔE 0.059
- Carolina Blue #8AB8FE ΔE 0.061
- Dark Gray #A9A9A9 ΔE 0.063
Use #91AFD3 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.