#91B2D3
Closest named color: Light Grey Blue (#9DBCD4). oklch(75.1% 0.06 248.6), rgb(145, 178, 211).
Aa
Black text reads best on this color (9.51:1).
About this color
#91B2D3 is a medium-light, muted blue. In OKLCH its lightness is 75%, its chroma 0.060 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.033 away. Black text reads best on it, at 9.51:1.
| Hue family | Blues |
| Lightness | medium-light (75%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 9.51:1 |
| White text | 2.20:1 |
Values
| HEX | #91B2D3 |
| RGB | rgb(145, 178, 211) |
| HSL | hsl(210, 43%, 70%) |
| OKLCH | oklch(75.1% 0.06 248.6) |
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 #91B2D3 | 2.20:1 | Fails | Lc -48.2 | Large or bold text, headings |
| Black text on #91B2D3 | 9.51:1 | AAA | Lc 60.5 | Content text, not long reading |
| #91B2D3 text on white | 2.20:1 | Fails | Lc 43.4 | Non-text elements, placeholder text |
| #91B2D3 text on black | 9.51:1 | AAA | Lc -58.7 | 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
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CFDBE7
oklch(88.6% 0.021 248.1)
-
Step 300
300
#AEC3D8
oklch(80.8% 0.038 248.3)
-
Step 400
400 (this color)
#91B2D3
oklch(75.1% 0.06 248.6)
-
Step 500
500
#648EB6
oklch(63.2% 0.076 247.9)
-
Step 600
600
#4B77A2
oklch(55.6% 0.083 249)
-
Step 700
700
#3C648B
oklch(49.1% 0.078 249.1)
-
Step 800
800
#325271
oklch(42.8% 0.064 248.8)
-
Step 900
900
#2C445B
oklch(37.8% 0.05 248.2)
-
Step 950
950
#1A2835
oklch(27% 0.031 247.2)
#91B2D3 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) | #A5B2D5 | 0.026 |
| Deuteranopia (no green cones) | #9DABD2 | 0.023 |
| Tritanopia (no blue cones) | #7DBABD | 0.051 |
| Achromatopsia (no color) | #AEAEAE | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91B2D3
#91B2D3
oklch(75.1% 0.06 248.6)
- #C8A886
#C8A886
oklch(75.1% 0.06 68.4)
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 #91B2D3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.033
- Light Cornflower Blue #98C1D9 ΔE 0.042
- Cool Steel #97A7B3 ΔE 0.047
- French Gray #ADB5BD ΔE 0.049
- Cloudy Blue #ACC2D9 ΔE 0.058
- Bluegrey #85A3B2 ΔE 0.059
- Carolina Blue #8AB8FE ΔE 0.060
- Dark Gray #A9A9A9 ΔE 0.062
Use #91B2D3 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.