#B4FFF9
Closest named color: Pale Cyan (#B7FFFA). oklch(94.9% 0.074 189.7), rgb(180, 255, 249).
Aa
Black text reads best on this color (18.61:1).
About this color
#B4FFF9 is a very light, moderately saturated teal or cyan. In OKLCH its lightness is 95%, its chroma 0.074 and its hue 190°. Its hue sits on the cool side of the wheel. The nearest named color is Pale Cyan (#B7FFFA), ΔE 0.004 away. Black text reads best on it, at 18.61:1.
| Hue family | Teals and cyans |
| Lightness | very light (95%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Pale Cyan (#B7FFFA) |
| Black text | 18.61:1 |
| White text | 1.12:1 |
Values
| HEX | #B4FFF9 |
| RGB | rgb(180, 255, 249) |
| HSL | hsl(175, 100%, 85%) |
| OKLCH | oklch(94.9% 0.074 189.7) |
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 #B4FFF9 | 1.12:1 | Fails | Lc 0.0 | Not readable |
| Black text on #B4FFF9 | 18.61:1 | AAA | Lc 97.9 | Preferred for body text |
| #B4FFF9 text on white | 1.12:1 | Fails | Lc 0.0 | Not readable |
| #B4FFF9 text on black | 18.61:1 | AAA | Lc -98.9 | 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
#ECF8F7
oklch(97% 0.013 191)
-
Step 100
100 (this color)
#B4FFF9
oklch(94.9% 0.074 189.7)
-
Step 200
200
#B2E5E1
oklch(88.5% 0.053 190.3)
-
Step 300
300
#70D5CE
oklch(81% 0.096 189.5)
-
Step 400
400
#00B8B1
oklch(70.6% 0.122 190)
-
Step 500
500
#009E98
oklch(63.1% 0.109 190)
-
Step 600
600
#00857F
oklch(55.6% 0.096 189.2)
-
Step 700
700
#00706B
oklch(49.2% 0.085 189.4)
-
Step 800
800
#005C58
oklch(42.8% 0.074 189.6)
-
Step 900
900
#004C49
oklch(37.6% 0.065 190.2)
-
Step 950
950
#002E2B
oklch(27.1% 0.047 188)
#B4FFF9 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) | #F7F7F9 | 0.079 |
| Deuteranopia (no green cones) | #E9EDFA | 0.074 |
| Tritanopia (no blue cones) | #9BFFFD | 0.024 |
| Achromatopsia (no color) | #F1F1F1 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B4FFF9
#B4FFF9
oklch(94.9% 0.074 189.7)
- #FFE8EA
#FFE8EA
oklch(95% 0.025 11.6)
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 #B4FFF9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pale Cyan #B7FFFA ΔE 0.004
- Eggshell Blue #C4FFF7 ΔE 0.017
- Duck Egg Blue #C3FBF4 ΔE 0.017
- Pale Aqua #B8FFEB ΔE 0.019
- Light Light Blue #CAFFFB ΔE 0.024
- Pale Sky Blue #BDF6FE ΔE 0.028
- Pale Blue #D0FEFE ΔE 0.032
- Really Light Blue #D4FFFF ΔE 0.037
Use #B4FFF9 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.