#5BF9DD
Closest named color: Bright Aqua (#0BF9EA). oklch(89.2% 0.138 178.9), rgb(91, 249, 221).
Aa
Black text reads best on this color (16.03:1).
About this color
#5BF9DD is a light, moderately saturated teal or cyan. In OKLCH its lightness is 89%, its chroma 0.138 and its hue 179°. Its hue sits on the cool side of the wheel. The nearest named color is Bright Aqua (#0BF9EA), ΔE 0.027 away. Black text reads best on it, at 16.03:1.
| Hue family | Teals and cyans |
| Lightness | light (89%) |
| Chroma | moderately saturated (0.138) |
| Temperature | cool |
| Nearest name | Bright Aqua (#0BF9EA) |
| Black text | 16.03:1 |
| White text | 1.30:1 |
Values
| HEX | #5BF9DD |
| RGB | rgb(91, 249, 221) |
| HSL | hsl(169, 93%, 67%) |
| OKLCH | oklch(89.2% 0.138 178.9) |
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 #5BF9DD | 1.30:1 | Fails | Lc -17.2 | Dividers and decoration only |
| Black text on #5BF9DD | 16.03:1 | AAA | Lc 88.7 | Fine for body text |
| #5BF9DD text on white | 1.30:1 | Fails | Lc 14.9 | Not readable |
| #5BF9DD text on black | 16.03:1 | AAA | Lc -88.8 | 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
#E6FBF6
oklch(97.1% 0.023 180)
-
Step 100
100
#C6F6EA
oklch(93.6% 0.052 178.2)
-
Step 200
200 (this color)
#5BF9DD
oklch(89.2% 0.138 178.9)
-
Step 300
300
#00DFC2
oklch(80.9% 0.148 178.8)
-
Step 400
400
#00BAA2
oklch(70.6% 0.129 179.1)
-
Step 500
500
#00A08B
oklch(63.2% 0.115 179)
-
Step 600
600
#008674
oklch(55.5% 0.101 178.9)
-
Step 700
700
#007162
oklch(49.1% 0.09 179.3)
-
Step 800
800
#005D50
oklch(42.8% 0.078 178.9)
-
Step 900
900
#004D42
oklch(37.6% 0.069 179)
-
Step 950
950
#002E27
oklch(27% 0.049 179.5)
#5BF9DD 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) | #EFEBDC | 0.145 |
| Deuteranopia (no green cones) | #D8DADF | 0.138 |
| Tritanopia (no blue cones) | #00FDF0 | 0.030 |
| Achromatopsia (no color) | #E1E1E1 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BF9DD
#5BF9DD
oklch(89.2% 0.138 178.9)
- #FFCBDA
#FFCBDA
oklch(89.2% 0.062 359.3)
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 #5BF9DD, closest first.
No curated palette has a color within ΔE 0.04 of #5BF9DD.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bright Aqua #0BF9EA ΔE 0.027
- Light Turquoise #7EF4CC ΔE 0.028
- Aquamarine #7FFFD4 ΔE 0.034
- Bright Turquoise #0FFEF9 ΔE 0.038
- Light Aquamarine #7BFDC7 ΔE 0.039
- Light Aqua #8CFFDB ΔE 0.040
- Bright Cyan #41FDFE ΔE 0.043
- Bright Teal #01F9C6 ΔE 0.044
Use #5BF9DD 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.