#91B7DD
Closest named color: Light Grey Blue (#9DBCD4). oklch(76.5% 0.068 248.7), rgb(145, 183, 221).
Aa
Black text reads best on this color (10.02:1).
About this color
#91B7DD is a medium-light, muted blue. In OKLCH its lightness is 77%, its chroma 0.068 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.026 away. Black text reads best on it, at 10.02:1.
| Hue family | Blues |
| Lightness | medium-light (77%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 10.02:1 |
| White text | 2.09:1 |
Values
| HEX | #91B7DD |
| RGB | rgb(145, 183, 221) |
| HSL | hsl(210, 53%, 72%) |
| OKLCH | oklch(76.5% 0.068 248.7) |
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 #91B7DD | 2.09:1 | Fails | Lc -45.6 | Large or bold text, headings |
| Black text on #91B7DD | 10.02:1 | AAA | Lc 63.0 | Content text, not long reading |
| #91B7DD text on white | 2.09:1 | Fails | Lc 41.0 | Non-text elements, placeholder text |
| #91B7DD text on black | 10.02:1 | AAA | Lc -61.3 | Content text, not long reading |
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 300.
-
Step 50
50
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0EBF7
oklch(93.5% 0.02 250.4)
-
Step 200
200
#C6DCF2
oklch(88.5% 0.038 248.3)
-
Step 300
300 (this color)
#91B7DD
oklch(76.5% 0.068 248.7)
-
Step 400
400
#67A6E2
oklch(70.7% 0.11 248.5)
-
Step 500
500
#398EDA
oklch(63.1% 0.14 249)
-
Step 600
600
#0177C7
oklch(55.7% 0.151 248.5)
-
Step 700
700
#0063A9
oklch(49% 0.136 249.1)
-
Step 800
800
#00518B
oklch(42.6% 0.117 248.8)
-
Step 900
900
#10446F
oklch(37.7% 0.091 248.4)
-
Step 950
950
#0C2841
oklch(27% 0.058 248.6)
#91B7DD 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) | #A8B8DF | 0.029 |
| Deuteranopia (no green cones) | #9FB0DC | 0.024 |
| Tritanopia (no blue cones) | #79C0C3 | 0.059 |
| Achromatopsia (no color) | #B3B3B3 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91B7DD
#91B7DD
oklch(76.5% 0.068 248.7)
- #D0AB84
#D0AB84
oklch(76.5% 0.068 68)
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 #91B7DD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.026
- Light Cornflower Blue #98C1D9 ΔE 0.032
- Carolina Blue #8AB8FE ΔE 0.048
- Cloudy Blue #ACC2D9 ΔE 0.049
- Lightblue #7BC8F6 ΔE 0.051
- French Gray #ADB5BD ΔE 0.054
- Pastel Blue #A2BFFE ΔE 0.054
- Light Steel Blue #B0C4DE ΔE 0.055
Use #91B7DD 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.