#51F2FD
Closest named color: Bright Light Blue (#26F7FD). oklch(88.3% 0.131 201.7), rgb(81, 242, 253).
Aa
Black text reads best on this color (15.46:1).
About this color
#51F2FD is a light, moderately saturated teal or cyan. In OKLCH its lightness is 88%, its chroma 0.131 and its hue 202°. Its hue sits on the cool side of the wheel. The nearest named color is Bright Light Blue (#26F7FD), ΔE 0.018 away. Black text reads best on it, at 15.46:1.
| Hue family | Teals and cyans |
| Lightness | light (88%) |
| Chroma | moderately saturated (0.131) |
| Temperature | cool |
| Nearest name | Bright Light Blue (#26F7FD) |
| Black text | 15.46:1 |
| White text | 1.35:1 |
Values
| HEX | #51F2FD |
| RGB | rgb(81, 242, 253) |
| HSL | hsl(184, 98%, 65%) |
| OKLCH | oklch(88.3% 0.131 201.7) |
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 #51F2FD | 1.35:1 | Fails | Lc -19.6 | Dividers and decoration only |
| Black text on #51F2FD | 15.46:1 | AAA | Lc 86.5 | Fine for body text |
| #51F2FD text on white | 1.35:1 | Fails | Lc 17.1 | Dividers and decoration only |
| #51F2FD text on black | 15.46:1 | AAA | Lc -86.5 | 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
#E5FAFC
oklch(97% 0.022 203.7)
-
Step 100
100
#C5F4F8
oklch(93.6% 0.048 202.8)
-
Step 200
200 (this color)
#51F2FD
oklch(88.3% 0.131 201.7)
-
Step 300
300
#00DAE6
oklch(80.9% 0.138 201.9)
-
Step 400
400
#00B6C0
oklch(70.7% 0.12 201.8)
-
Step 500
500
#009CA5
oklch(63.1% 0.107 202)
-
Step 600
600
#00838B
oklch(55.5% 0.095 202.3)
-
Step 700
700
#006E75
oklch(49% 0.083 202.5)
-
Step 800
800
#005A60
oklch(42.6% 0.073 202.7)
-
Step 900
900
#004B50
oklch(37.6% 0.064 202.5)
-
Step 950
950
#002D30
oklch(27% 0.046 201.8)
#51F2FD 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) | #E0E8FE | 0.132 |
| Deuteranopia (no green cones) | #C7D5FE | 0.123 |
| Tritanopia (no blue cones) | #00FBF5 | 0.035 |
| Achromatopsia (no color) | #DDDDDD | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51F2FD
#51F2FD
oklch(88.3% 0.131 201.7)
- #FFC9C7
#FFC9C7
oklch(88.3% 0.062 20.9)
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 #51F2FD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bright Light Blue #26F7FD ΔE 0.018
- Robin's Egg #6DEDFD ΔE 0.020
- Bright Cyan #41FDFE ΔE 0.029
- Cyan #00FFFF ΔE 0.036
- Bright Turquoise #0FFEF9 ΔE 0.037
- Robin Egg Blue #8AF1FE ΔE 0.038
- Bright Aqua #0BF9EA ΔE 0.043
- Robin's Egg Blue #98EFF9 ΔE 0.050
Use #51F2FD 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.