#91ADDD
Closest named color: Carolina Blue (#8AB8FE). oklch(74.4% 0.076 261.1), rgb(145, 173, 221).
Aa
Black text reads best on this color (9.22:1).
About this color
#91ADDD is a medium-light, moderately saturated blue. In OKLCH its lightness is 74%, its chroma 0.076 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.049 away. Black text reads best on it, at 9.22:1.
| Hue family | Blues |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 9.22:1 |
| White text | 2.27:1 |
Values
| HEX | #91ADDD |
| RGB | rgb(145, 173, 221) |
| HSL | hsl(218, 53%, 72%) |
| OKLCH | oklch(74.4% 0.076 261.1) |
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 #91ADDD | 2.27:1 | Fails | Lc -49.7 | Large or bold text, headings |
| Black text on #91ADDD | 9.22:1 | AAA | Lc 59.1 | Large or bold text, headings |
| #91ADDD text on white | 2.27:1 | Fails | Lc 44.9 | Non-text elements, placeholder text |
| #91ADDD text on black | 9.22:1 | AAA | Lc -57.3 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E5EAF3
oklch(93.6% 0.013 262.4)
-
Step 200
200
#CFDAEB
oklch(88.5% 0.026 259)
-
Step 300
300
#B0C2E0
oklch(81% 0.047 260.7)
-
Step 400
400 (this color)
#91ADDD
oklch(74.4% 0.076 261.1)
-
Step 500
500
#688AC5
oklch(63.2% 0.097 261)
-
Step 600
600
#4F73B1
oklch(55.7% 0.105 260.7)
-
Step 700
700
#406098
oklch(49.1% 0.098 261)
-
Step 800
800
#354E7C
oklch(42.6% 0.083 261.8)
-
Step 900
900
#2E4163
oklch(37.6% 0.064 261.5)
-
Step 950
950
#1B263A
oklch(26.9% 0.041 261.9)
#91ADDD 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) | #9DB0DF | 0.018 |
| Deuteranopia (no green cones) | #95A9DC | 0.011 |
| Tritanopia (no blue cones) | #7AB7BD | 0.068 |
| Achromatopsia (no color) | #ACACAC | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91ADDD
#91ADDD
oklch(74.4% 0.076 261.1)
- #C5A874
#C5A874
oklch(74.5% 0.077 81.6)
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 #91ADDD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.049
- Light Grey Blue #9DBCD4 ΔE 0.050
- Light Cornflower Blue #98C1D9 ΔE 0.059
- Cool Steel #97A7B3 ΔE 0.059
- Pastel Blue #A2BFFE ΔE 0.065
- Bluegrey #85A3B2 ΔE 0.066
- French Gray #ADB5BD ΔE 0.067
- Bluey Grey #89A0B0 ΔE 0.069
Use #91ADDD 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.