#4BE3F9
Closest named color: Robin's Egg (#6DEDFD). oklch(84.6% 0.128 209), rgb(75, 227, 249).
Aa
Black text reads best on this color (13.65:1).
About this color
#4BE3F9 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 85%, its chroma 0.128 and its hue 209°. Its hue sits on the cool side of the wheel. The nearest named color is Robin's Egg (#6DEDFD), ΔE 0.037 away. Black text reads best on it, at 13.65:1.
| Hue family | Teals and cyans |
| Lightness | light (85%) |
| Chroma | moderately saturated (0.128) |
| Temperature | cool |
| Nearest name | Robin's Egg (#6DEDFD) |
| Black text | 13.65:1 |
| White text | 1.53:1 |
Values
| HEX | #4BE3F9 |
| RGB | rgb(75, 227, 249) |
| HSL | hsl(188, 94%, 64%) |
| OKLCH | oklch(84.6% 0.128 209) |
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 #4BE3F9 | 1.53:1 | Fails | Lc -27.7 | Dividers and decoration only |
| Black text on #4BE3F9 | 13.65:1 | AAA | Lc 79.3 | Fine for body text |
| #4BE3F9 text on white | 1.53:1 | Fails | Lc 24.5 | Dividers and decoration only |
| #4BE3F9 text on black | 13.65:1 | AAA | Lc -78.7 | 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 300.
-
Step 50
50
#E9F9FC
oklch(97.1% 0.017 210.2)
-
Step 100
100
#CFF1F7
oklch(93.6% 0.036 209.4)
-
Step 200
200
#A1E7F2
oklch(88.5% 0.071 208.2)
-
Step 300
300 (this color)
#4BE3F9
oklch(84.6% 0.128 209)
-
Step 400
400
#00B5C9
oklch(70.8% 0.122 208.7)
-
Step 500
500
#009BAD
oklch(63.1% 0.109 209.2)
-
Step 600
600
#008291
oklch(55.5% 0.096 208.9)
-
Step 700
700
#006D7A
oklch(49% 0.084 209.1)
-
Step 800
800
#005A65
oklch(42.8% 0.074 209.1)
-
Step 900
900
#004B54
oklch(37.8% 0.065 208.5)
-
Step 950
950
#002C33
oklch(26.9% 0.047 211.1)
#4BE3F9 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) | #CFDBFA | 0.121 |
| Deuteranopia (no green cones) | #B7C9F9 | 0.111 |
| Tritanopia (no blue cones) | #00EDEA | 0.043 |
| Achromatopsia (no color) | #D0D0D0 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4BE3F9
#4BE3F9
oklch(84.6% 0.128 209)
- #FFB8AD
#FFB8AD
oklch(84.6% 0.085 28.8)
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 #4BE3F9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Robin's Egg #6DEDFD ΔE 0.037
- Aqua Blue #02D8E9 ΔE 0.043
- Bright Light Blue #26F7FD ΔE 0.053
- Turquoise #40E0D0 ΔE 0.059
- Robin Egg Blue #8AF1FE ΔE 0.062
- Sky Blue #87CEEB ΔE 0.063
- Light Sky Blue #87CEFA ΔE 0.067
- Bright Cyan #41FDFE ΔE 0.070
Use #4BE3F9 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.