#A4E5FB
Closest named color: Powder Blue (#B0E0E6). oklch(88.6% 0.072 220.9), rgb(164, 229, 251).
Aa
Black text reads best on this color (15.17:1).
About this color
#A4E5FB is a light, moderately saturated teal or cyan. In OKLCH its lightness is 89%, its chroma 0.072 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is Powder Blue (#B0E0E6), ΔE 0.029 away. Black text reads best on it, at 15.17:1.
| Hue family | Teals and cyans |
| Lightness | light (89%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Powder Blue (#B0E0E6) |
| Black text | 15.17:1 |
| White text | 1.38:1 |
Values
| HEX | #A4E5FB |
| RGB | rgb(164, 229, 251) |
| HSL | hsl(195, 92%, 81%) |
| OKLCH | oklch(88.6% 0.072 220.9) |
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 #A4E5FB | 1.38:1 | Fails | Lc -21.3 | Dividers and decoration only |
| Black text on #A4E5FB | 15.17:1 | AAA | Lc 85.1 | Fine for body text |
| #A4E5FB text on white | 1.38:1 | Fails | Lc 18.6 | Dividers and decoration only |
| #A4E5FB text on black | 15.17:1 | AAA | Lc -84.9 | Fine for body text |
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 200.
-
Step 50
50
#EDF8FB
oklch(97.2% 0.012 215.8)
-
Step 100
100
#D7EEF7
oklch(93.5% 0.027 223.2)
-
Step 200
200 (this color)
#A4E5FB
oklch(88.6% 0.072 220.9)
-
Step 300
300
#78CFEB
oklch(81% 0.093 220.9)
-
Step 400
400
#00B2D9
oklch(70.7% 0.13 221)
-
Step 500
500
#0099BA
oklch(63.2% 0.115 220.3)
-
Step 600
600
#00809D
oklch(55.6% 0.102 221.1)
-
Step 700
700
#006C84
oklch(49.2% 0.09 220.2)
-
Step 800
800
#00586D
oklch(42.6% 0.078 221.3)
-
Step 900
900
#00495B
oklch(37.6% 0.069 221.4)
-
Step 950
950
#002C37
oklch(27.1% 0.049 219.4)
#A4E5FB 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) | #D8E1FC | 0.061 |
| Deuteranopia (no green cones) | #CAD7FB | 0.054 |
| Tritanopia (no blue cones) | #85ECEC | 0.044 |
| Achromatopsia (no color) | #DBDBDB | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A4E5FB
#A4E5FB
oklch(88.6% 0.072 220.9)
- #FFCCBA
#FFCCBA
oklch(88.5% 0.063 40.3)
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 #A4E5FB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Powder Blue #B0E0E6 ΔE 0.029
- Robin's Egg Blue #98EFF9 ΔE 0.029
- Robin Egg Blue #8AF1FE ΔE 0.037
- Pale Turquoise #AFEEEE ΔE 0.037
- Light Blue #ADD8E6 ΔE 0.037
- Diamond #B9F2FF ΔE 0.043
- Celeste #A8DADC ΔE 0.044
- Robin's Egg #6DEDFD ΔE 0.049
Use #A4E5FB 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.