#00ADEA
Closest named color: Deep Sky Blue (#00BFFF). oklch(70.3% 0.145 232.8), rgb(0, 173, 234).
Aa
Black text reads best on this color (8.16:1).
About this color
#00ADEA is a medium-light, vivid blue. In OKLCH its lightness is 70%, its chroma 0.145 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sky Blue (#00BFFF), ΔE 0.053 away. Black text reads best on it, at 8.16:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | vivid (0.145) |
| Temperature | cool |
| Nearest name | Deep Sky Blue (#00BFFF) |
| Black text | 8.16:1 |
| White text | 2.57:1 |
Values
| HEX | #00ADEA |
| RGB | rgb(0, 173, 234) |
| HSL | hsl(196, 100%, 46%) |
| OKLCH | oklch(70.3% 0.145 232.8) |
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 #00ADEA | 2.57:1 | Fails | Lc -54.7 | Large or bold text, headings |
| Black text on #00ADEA | 8.16:1 | AAA | Lc 54.4 | Large or bold text, headings |
| #00ADEA text on white | 2.57:1 | Fails | Lc 49.6 | Large or bold text, headings |
| #00ADEA text on black | 8.16:1 | AAA | Lc -52.3 | Large or bold text, headings |
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 400.
-
Step 50
50
#EEF7FC
oklch(97.1% 0.012 231.7)
-
Step 100
100
#DAEDF9
oklch(93.6% 0.026 235.4)
-
Step 200
200
#B9E0F5
oklch(88.6% 0.05 231.6)
-
Step 300
300
#83CBF2
oklch(80.9% 0.091 233.2)
-
Step 400
400 (this color)
#00ADEA
oklch(70.3% 0.145 232.8)
-
Step 500
500
#0095CB
oklch(63% 0.131 233.2)
-
Step 600
600
#007DAB
oklch(55.5% 0.115 233.2)
-
Step 700
700
#006990
oklch(49% 0.101 232.9)
-
Step 800
800
#005677
oklch(42.6% 0.088 233.1)
-
Step 900
900
#004864
oklch(37.8% 0.078 232.8)
-
Step 950
950
#002B3D
oklch(27.1% 0.055 231.9)
#00ADEA 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) | #8EACED | 0.092 |
| Deuteranopia (no green cones) | #7399E9 | 0.077 |
| Tritanopia (no blue cones) | #00BDC2 | 0.085 |
| Achromatopsia (no color) | #A1A1A1 | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00ADEA
#00ADEA
oklch(70.3% 0.145 232.8)
- #E4833E
#E4833E
oklch(70.3% 0.145 53.1)
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 #00ADEA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sky Blue #00BFFF ΔE 0.053
- Turquoise Blue #06B1C4 ΔE 0.062
- Chefchaouen Blue #4895EF ΔE 0.069
- Cornflower Blue #6495ED ΔE 0.076
- Dark Sky Blue #448EE4 ΔE 0.083
- Bright Sky Blue #02CCFE ΔE 0.085
- Vivid Sky Blue #4CC9F0 ΔE 0.086
- Dodger Blue #1E90FF ΔE 0.090
Use #00ADEA 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.