#4BF9E1
Closest named color: Bright Aqua (#0BF9EA). oklch(88.9% 0.143 181.7), rgb(75, 249, 225).
Aa
Black text reads best on this color (15.93:1).
About this color
#4BF9E1 is a light, vivid teal or cyan. In OKLCH its lightness is 89%, its chroma 0.143 and its hue 182°. Its hue sits on the cool side of the wheel. The nearest named color is Bright Aqua (#0BF9EA), ΔE 0.018 away. Black text reads best on it, at 15.93:1.
| Hue family | Teals and cyans |
| Lightness | light (89%) |
| Chroma | vivid (0.143) |
| Temperature | cool |
| Nearest name | Bright Aqua (#0BF9EA) |
| Black text | 15.93:1 |
| White text | 1.31:1 |
Values
| HEX | #4BF9E1 |
| RGB | rgb(75, 249, 225) |
| HSL | hsl(172, 94%, 64%) |
| OKLCH | oklch(88.9% 0.143 181.7) |
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 #4BF9E1 | 1.31:1 | Fails | Lc -17.6 | Dividers and decoration only |
| Black text on #4BF9E1 | 15.93:1 | AAA | Lc 88.4 | Fine for body text |
| #4BF9E1 text on white | 1.31:1 | Fails | Lc 15.3 | Dividers and decoration only |
| #4BF9E1 text on black | 15.93:1 | AAA | Lc -88.5 | 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
#E5FBF6
oklch(97.1% 0.024 180.7)
-
Step 100
100
#C4F6EC
oklch(93.6% 0.053 181.6)
-
Step 200
200 (this color)
#4BF9E1
oklch(88.9% 0.143 181.7)
-
Step 300
300
#00DEC7
oklch(80.8% 0.145 181.9)
-
Step 400
400
#00BAA6
oklch(70.8% 0.127 181.5)
-
Step 500
500
#009F8E
oklch(63% 0.113 181.8)
-
Step 600
600
#008677
oklch(55.6% 0.1 181.4)
-
Step 700
700
#007164
oklch(49.2% 0.089 181.2)
-
Step 800
800
#005C52
oklch(42.6% 0.076 182.2)
-
Step 900
900
#004D44
oklch(37.7% 0.068 181.7)
-
Step 950
950
#002E28
oklch(27% 0.049 181.5)
#4BF9E1 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) | #EEEBE0 | 0.151 |
| Deuteranopia (no green cones) | #D6D9E3 | 0.144 |
| Tritanopia (no blue cones) | #00FEF2 | 0.024 |
| Achromatopsia (no color) | #E0E0E0 | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4BF9E1
#4BF9E1
oklch(88.9% 0.143 181.7)
- #FFCAD7
#FFCAD7
oklch(88.9% 0.062 2.1)
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 #4BF9E1, closest first.
No curated palette has a color within ΔE 0.04 of #4BF9E1.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bright Aqua #0BF9EA ΔE 0.018
- Bright Turquoise #0FFEF9 ΔE 0.032
- Light Turquoise #7EF4CC ΔE 0.036
- Bright Cyan #41FDFE ΔE 0.038
- Cyan #00FFFF ΔE 0.039
- Aquamarine #7FFFD4 ΔE 0.041
- Bright Light Blue #26F7FD ΔE 0.042
- Bright Teal #01F9C6 ΔE 0.044
Use #4BF9E1 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.