#91C0E9
Closest named color: Light Cornflower Blue (#98C1D9). oklch(78.9% 0.077 245.3), rgb(145, 192, 233).
Aa
Black text reads best on this color (10.92:1).
About this color
#91C0E9 is a light, moderately saturated blue. In OKLCH its lightness is 79%, its chroma 0.077 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Light Cornflower Blue (#98C1D9), ΔE 0.025 away. Black text reads best on it, at 10.92:1.
| Hue family | Blues |
| Lightness | light (79%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Light Cornflower Blue (#98C1D9) |
| Black text | 10.92:1 |
| White text | 1.92:1 |
Values
| HEX | #91C0E9 |
| RGB | rgb(145, 192, 233) |
| HSL | hsl(208, 67%, 74%) |
| OKLCH | oklch(78.9% 0.077 245.3) |
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 #91C0E9 | 1.92:1 | Fails | Lc -41.0 | Non-text elements, placeholder text |
| Black text on #91C0E9 | 10.92:1 | AAA | Lc 67.2 | Content text, not long reading |
| #91C0E9 text on white | 1.92:1 | Fails | Lc 36.7 | Non-text elements, placeholder text |
| #91C0E9 text on black | 10.92:1 | AAA | Lc -65.7 | 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
#F0F6FC
oklch(97% 0.01 247.9)
-
Step 100
100
#DEECF8
oklch(93.6% 0.022 243.8)
-
Step 200
200
#C3DDF4
oklch(88.6% 0.042 245)
-
Step 300
300 (this color)
#91C0E9
oklch(78.9% 0.077 245.3)
-
Step 400
400
#58A8E8
oklch(70.8% 0.123 244.9)
-
Step 500
500
#0B90E1
oklch(63.1% 0.157 245.1)
-
Step 600
600
#0079BF
oklch(55.7% 0.14 245)
-
Step 700
700
#0065A2
oklch(49% 0.125 245.5)
-
Step 800
800
#005386
oklch(42.8% 0.108 245.3)
-
Step 900
900
#004570
oklch(37.7% 0.095 244.9)
-
Step 950
950
#032944
oklch(27.1% 0.065 245.1)
#91C0E9 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) | #AFC0EB | 0.037 |
| Deuteranopia (no green cones) | #A4B7E8 | 0.031 |
| Tritanopia (no blue cones) | #72CACD | 0.065 |
| Achromatopsia (no color) | #BBBBBB | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91C0E9
#91C0E9
oklch(78.9% 0.077 245.3)
- #DDB186
#DDB186
oklch(79% 0.077 65.7)
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 #91C0E9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Cornflower Blue #98C1D9 ΔE 0.025
- Lightblue #7BC8F6 ΔE 0.030
- Light Grey Blue #9DBCD4 ΔE 0.030
- Sky #82CAFC ΔE 0.033
- Sky Blue #87CEEB ΔE 0.038
- Light Sky Blue #87CEFA ΔE 0.038
- Pastel Blue #A2BFFE ΔE 0.039
- Cloudy Blue #ACC2D9 ΔE 0.040
Use #91C0E9 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.