#91ACE8
Closest named color: Carolina Blue (#8AB8FE). oklch(74.7% 0.092 265.5), rgb(145, 172, 232).
Aa
Black text reads best on this color (9.27:1).
About this color
#91ACE8 is a medium-light, moderately saturated blue. In OKLCH its lightness is 75%, its chroma 0.092 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.039 away. Black text reads best on it, at 9.27:1.
| Hue family | Blues |
| Lightness | medium-light (75%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 9.27:1 |
| White text | 2.26:1 |
Values
| HEX | #91ACE8 |
| RGB | rgb(145, 172, 232) |
| HSL | hsl(221, 65%, 74%) |
| OKLCH | oklch(74.7% 0.092 265.5) |
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 #91ACE8 | 2.26:1 | Fails | Lc -49.4 | Large or bold text, headings |
| Black text on #91ACE8 | 9.27:1 | AAA | Lc 59.4 | Large or bold text, headings |
| #91ACE8 text on white | 2.26:1 | Fails | Lc 44.6 | Non-text elements, placeholder text |
| #91ACE8 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E4EAF5
oklch(93.6% 0.016 262.8)
-
Step 200
200
#CFD9EF
oklch(88.4% 0.032 266.1)
-
Step 300
300
#AFC1E7
oklch(81% 0.057 265.2)
-
Step 400
400 (this color)
#91ACE8
oklch(74.7% 0.092 265.5)
-
Step 500
500
#6787D1
oklch(63.2% 0.118 265.4)
-
Step 600
600
#4F6FBE
oklch(55.6% 0.128 265.8)
-
Step 700
700
#405DA4
oklch(49.2% 0.119 265.5)
-
Step 800
800
#354C85
oklch(42.7% 0.099 265.8)
-
Step 900
900
#2E406A
oklch(37.7% 0.076 265.4)
-
Step 950
950
#1B263E
oklch(27.1% 0.048 264.7)
#91ACE8 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) | #98B0EB | 0.015 |
| Deuteranopia (no green cones) | #8FA9E7 | 0.009 |
| Tritanopia (no blue cones) | #76B8C1 | 0.082 |
| Achromatopsia (no color) | #ACACAC | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91ACE8
#91ACE8
oklch(74.7% 0.092 265.5)
- #C7A967
#C7A967
oklch(74.7% 0.092 85.8)
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 #91ACE8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.039
- Pastel Blue #A2BFFE ΔE 0.060
- Light Grey Blue #9DBCD4 ΔE 0.062
- Periwinkle Blue #8F99FB ΔE 0.063
- Light Cornflower Blue #98C1D9 ΔE 0.068
- Lightblue #7BC8F6 ΔE 0.073
- Cool Steel #97A7B3 ΔE 0.075
- Sky #82CAFC ΔE 0.077
Use #91ACE8 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.