#3ADDFE
Closest named color: Aqua Blue (#02D8E9). oklch(83% 0.135 215.1), rgb(58, 221, 254).
Aa
Black text reads best on this color (12.95:1).
About this color
#3ADDFE is a light, moderately saturated teal or cyan. In OKLCH its lightness is 83%, its chroma 0.135 and its hue 215°. Its hue sits on the cool side of the wheel. The nearest named color is Aqua Blue (#02D8E9), ΔE 0.035 away. Black text reads best on it, at 12.95:1.
| Hue family | Teals and cyans |
| Lightness | light (83%) |
| Chroma | moderately saturated (0.135) |
| Temperature | cool |
| Nearest name | Aqua Blue (#02D8E9) |
| Black text | 12.95:1 |
| White text | 1.62:1 |
Values
| HEX | #3ADDFE |
| RGB | rgb(58, 221, 254) |
| HSL | hsl(190, 99%, 61%) |
| OKLCH | oklch(83% 0.135 215.1) |
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 #3ADDFE | 1.62:1 | Fails | Lc -30.9 | Non-text elements, placeholder text |
| Black text on #3ADDFE | 12.95:1 | AAA | Lc 76.5 | Fine for body text |
| #3ADDFE text on white | 1.62:1 | Fails | Lc 27.3 | Dividers and decoration only |
| #3ADDFE text on black | 12.95:1 | AAA | Lc -75.6 | 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
#E9F9FD
oklch(97.1% 0.018 214.4)
-
Step 100
100
#CEF1FA
oklch(93.6% 0.038 215)
-
Step 200
200
#9FE6F8
oklch(88.4% 0.075 215.3)
-
Step 300
300 (this color)
#3ADDFE
oklch(83% 0.135 215.1)
-
Step 400
400
#00B3D1
oklch(70.6% 0.125 215.4)
-
Step 500
500
#009AB3
oklch(63.1% 0.111 214.6)
-
Step 600
600
#008197
oklch(55.5% 0.098 215.2)
-
Step 700
700
#006D7F
oklch(49.2% 0.087 214.3)
-
Step 800
800
#005969
oklch(42.7% 0.076 215.4)
-
Step 900
900
#004A58
oklch(37.7% 0.067 215.8)
-
Step 950
950
#002C35
oklch(27% 0.048 215.4)
#3ADDFE 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) | #C6D6FF | 0.120 |
| Deuteranopia (no green cones) | #ACC3FE | 0.108 |
| Tritanopia (no blue cones) | #00E9E7 | 0.055 |
| Achromatopsia (no color) | #CBCBCB | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3ADDFE
#3ADDFE
oklch(83% 0.135 215.1)
- #FFB19D
#FFB19D
oklch(83% 0.096 35)
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 #3ADDFE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Blue #02D8E9 ΔE 0.035
- Bright Sky Blue #02CCFE ΔE 0.051
- Vivid Sky Blue #4CC9F0 ΔE 0.052
- Robin's Egg #6DEDFD ΔE 0.057
- Sky Blue #87CEEB ΔE 0.059
- Light Sky Blue #87CEFA ΔE 0.059
- Lightblue #7BC8F6 ΔE 0.063
- Sky #82CAFC ΔE 0.064
Use #3ADDFE 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.