#4BF9F4
Closest named color: Bright Cyan (#41FDFE). oklch(89.5% 0.138 192.1), rgb(75, 249, 244).
Aa
Black text reads best on this color (16.15:1).
About this color
#4BF9F4 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 90%, its chroma 0.138 and its hue 192°. Its hue sits on the cool side of the wheel. The nearest named color is Bright Cyan (#41FDFE), ΔE 0.014 away. Black text reads best on it, at 16.15:1.
| Hue family | Teals and cyans |
| Lightness | light (90%) |
| Chroma | moderately saturated (0.138) |
| Temperature | cool |
| Nearest name | Bright Cyan (#41FDFE) |
| Black text | 16.15:1 |
| White text | 1.29:1 |
Values
| HEX | #4BF9F4 |
| RGB | rgb(75, 249, 244) |
| HSL | hsl(178, 94%, 64%) |
| OKLCH | oklch(89.5% 0.138 192.1) |
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 #4BF9F4 | 1.29:1 | Fails | Lc -16.6 | Dividers and decoration only |
| Black text on #4BF9F4 | 16.15:1 | AAA | Lc 89.2 | Fine for body text |
| #4BF9F4 text on white | 1.29:1 | Fails | Lc 14.4 | Not readable |
| #4BF9F4 text on black | 16.15:1 | AAA | Lc -89.4 | 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
#E4FBF9
oklch(97.1% 0.024 190.4)
-
Step 100
100
#C3F5F3
oklch(93.5% 0.051 193.3)
-
Step 200
200 (this color)
#4BF9F4
oklch(89.5% 0.138 192.1)
-
Step 300
300
#00DCD8
oklch(80.9% 0.139 192.4)
-
Step 400
400
#00B8B4
oklch(70.7% 0.121 192)
-
Step 500
500
#009E9A
oklch(63.2% 0.109 191.6)
-
Step 600
600
#008582
oklch(55.7% 0.096 192)
-
Step 700
700
#006F6D
oklch(49% 0.084 192.6)
-
Step 800
800
#005B59
oklch(42.6% 0.073 192.2)
-
Step 900
900
#004C4A
oklch(37.6% 0.065 191.7)
-
Step 950
950
#002D2C
oklch(26.9% 0.046 192.5)
#4BF9F4 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) | #EAECF4 | 0.145 |
| Deuteranopia (no green cones) | #D1DAF5 | 0.136 |
| Tritanopia (no blue cones) | #00FFF7 | 0.020 |
| Achromatopsia (no color) | #E2E2E2 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4BF9F4
#4BF9F4
oklch(89.5% 0.138 192.1)
- #FFCED3
#FFCED3
oklch(89.5% 0.056 11.4)
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 #4BF9F4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bright Cyan #41FDFE ΔE 0.014
- Bright Turquoise #0FFEF9 ΔE 0.017
- Bright Light Blue #26F7FD ΔE 0.019
- Cyan #00FFFF ΔE 0.021
- Bright Aqua #0BF9EA ΔE 0.023
- Robin's Egg #6DEDFD ΔE 0.042
- Robin Egg Blue #8AF1FE ΔE 0.049
- Light Turquoise #7EF4CC ΔE 0.055
Use #4BF9F4 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.