#B4EFF4
Closest named color: Pale Turquoise (#AFEEEE). oklch(91.4% 0.06 202.7), rgb(180, 239, 244).
Aa
Black text reads best on this color (16.59:1).
About this color
#B4EFF4 is a very light, muted teal or cyan. In OKLCH its lightness is 91%, its chroma 0.060 and its hue 203°. Its hue sits on the cool side of the wheel. The nearest named color is Pale Turquoise (#AFEEEE), ΔE 0.010 away. Black text reads best on it, at 16.59:1.
| Hue family | Teals and cyans |
| Lightness | very light (91%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Pale Turquoise (#AFEEEE) |
| Black text | 16.59:1 |
| White text | 1.26:1 |
Values
| HEX | #B4EFF4 |
| RGB | rgb(180, 239, 244) |
| HSL | hsl(185, 74%, 83%) |
| OKLCH | oklch(91.4% 0.06 202.7) |
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 #B4EFF4 | 1.26:1 | Fails | Lc -15.2 | Dividers and decoration only |
| Black text on #B4EFF4 | 16.59:1 | AAA | Lc 90.5 | Preferred for body text |
| #B4EFF4 text on white | 1.26:1 | Fails | Lc 13.1 | Not readable |
| #B4EFF4 text on black | 16.59:1 | AAA | Lc -90.8 | Preferred 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 100.
-
Step 50
50
#EEF8F8
oklch(97.2% 0.011 197)
-
Step 100
100 (this color)
#B4EFF4
oklch(91.4% 0.06 202.7)
-
Step 200
200
#B9E2E5
oklch(88.5% 0.043 201.9)
-
Step 300
300
#82D0D6
oklch(80.9% 0.077 202)
-
Step 400
400
#00B6C1
oklch(70.7% 0.12 202.5)
-
Step 500
500
#009CA6
oklch(63.1% 0.107 202.8)
-
Step 600
600
#00838C
oklch(55.6% 0.095 203.3)
-
Step 700
700
#006E75
oklch(49% 0.083 202.5)
-
Step 800
800
#005A60
oklch(42.6% 0.073 202.7)
-
Step 900
900
#004B50
oklch(37.6% 0.064 202.5)
-
Step 950
950
#002D30
oklch(27% 0.046 201.8)
#B4EFF4 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) | #E6EAF4 | 0.060 |
| Deuteranopia (no green cones) | #DAE1F4 | 0.055 |
| Tritanopia (no blue cones) | #9FF4F0 | 0.026 |
| Achromatopsia (no color) | #E5E5E5 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B4EFF4
#B4EFF4
oklch(91.4% 0.06 202.7)
- #FFD8D5
#FFD8D5
oklch(91.4% 0.044 23.2)
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 #B4EFF4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pale Turquoise #AFEEEE ΔE 0.010
- Diamond #B9F2FF ΔE 0.017
- Pale Sky Blue #BDF6FE ΔE 0.024
- Robin's Egg Blue #98EFF9 ΔE 0.028
- Duck Egg Blue #C3FBF4 ΔE 0.038
- Powder Blue #B0E0E6 ΔE 0.040
- Robin Egg Blue #8AF1FE ΔE 0.040
- Pale Cyan #B7FFFA ΔE 0.042
Use #B4EFF4 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.