#91ADD8
Closest named color: Light Grey Blue (#9DBCD4). oklch(74.2% 0.07 258.8), rgb(145, 173, 216).
Aa
Black text reads best on this color (9.17:1).
About this color
#91ADD8 is a medium-light, muted blue. In OKLCH its lightness is 74%, its chroma 0.070 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.047 away. Black text reads best on it, at 9.17:1.
| Hue family | Blues |
| Lightness | medium-light (74%) |
| Chroma | muted (0.070) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 9.17:1 |
| White text | 2.28:1 |
Values
| HEX | #91ADD8 |
| RGB | rgb(145, 173, 216) |
| HSL | hsl(216, 48%, 71%) |
| OKLCH | oklch(74.2% 0.07 258.8) |
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 #91ADD8 | 2.28:1 | Fails | Lc -50.0 | Large or bold text, headings |
| Black text on #91ADD8 | 9.17:1 | AAA | Lc 58.9 | Large or bold text, headings |
| #91ADD8 text on white | 2.28:1 | Fails | Lc 45.1 | Large or bold text, headings |
| #91ADD8 text on black | 9.17:1 | AAA | Lc -57.0 | 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
#E5EAF2
oklch(93.6% 0.012 259.8)
-
Step 200
200
#D0DAEA
oklch(88.6% 0.025 259.8)
-
Step 300
300
#B0C2DD
oklch(80.9% 0.043 258.4)
-
Step 400
400 (this color)
#91ADD8
oklch(74.2% 0.07 258.8)
-
Step 500
500
#688BBF
oklch(63.2% 0.088 258.1)
-
Step 600
600
#5074AC
oklch(55.7% 0.097 259)
-
Step 700
700
#406194
oklch(49.1% 0.091 258.8)
-
Step 800
800
#354F78
oklch(42.6% 0.076 259.2)
-
Step 900
900
#2E4260
oklch(37.6% 0.058 258.3)
-
Step 950
950
#1B2738
oklch(27% 0.036 257.1)
#91ADD8 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) | #9EAFDA | 0.018 |
| Deuteranopia (no green cones) | #96A8D7 | 0.014 |
| Tritanopia (no blue cones) | #7CB6BB | 0.062 |
| Achromatopsia (no color) | #ABABAB | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91ADD8
#91ADD8
oklch(74.2% 0.07 258.8)
- #C4A779
#C4A779
oklch(74.3% 0.07 78.8)
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 #91ADD8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.047
- Cool Steel #97A7B3 ΔE 0.052
- Carolina Blue #8AB8FE ΔE 0.055
- Light Cornflower Blue #98C1D9 ΔE 0.056
- Bluegrey #85A3B2 ΔE 0.060
- French Gray #ADB5BD ΔE 0.062
- Bluey Grey #89A0B0 ΔE 0.062
- Greyblue #77A1B5 ΔE 0.067
Use #91ADD8 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.