#53B6EE
Closest named color: Deep Sky Blue (#00BFFF). oklch(74% 0.123 236.6), rgb(83, 182, 238).
Aa
Black text reads best on this color (9.29:1).
About this color
#53B6EE is a medium-light, moderately saturated blue. In OKLCH its lightness is 74%, its chroma 0.123 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sky Blue (#00BFFF), ΔE 0.036 away. Black text reads best on it, at 9.29:1.
| Hue family | Blues |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.123) |
| Temperature | cool |
| Nearest name | Deep Sky Blue (#00BFFF) |
| Black text | 9.29:1 |
| White text | 2.25:1 |
Values
| HEX | #53B6EE |
| RGB | rgb(83, 182, 238) |
| HSL | hsl(202, 82%, 63%) |
| OKLCH | oklch(74% 0.123 236.6) |
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 #53B6EE | 2.25:1 | Fails | Lc -49.1 | Large or bold text, headings |
| Black text on #53B6EE | 9.29:1 | AAA | Lc 59.7 | Large or bold text, headings |
| #53B6EE text on white | 2.25:1 | Fails | Lc 44.3 | Non-text elements, placeholder text |
| #53B6EE text on black | 9.29:1 | AAA | Lc -57.9 | 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
#EFF7FC
oklch(97.2% 0.011 234.8)
-
Step 100
100
#DDEDF7
oklch(93.7% 0.022 235)
-
Step 200
200
#C0DEF2
oklch(88.5% 0.042 237.2)
-
Step 300
300
#91C9EC
oklch(81% 0.076 236.4)
-
Step 400
400 (this color)
#53B6EE
oklch(74% 0.123 236.6)
-
Step 500
500
#0094D1
oklch(63.1% 0.137 236.6)
-
Step 600
600
#007CB0
oklch(55.5% 0.121 236.7)
-
Step 700
700
#006895
oklch(49% 0.107 237)
-
Step 800
800
#00557B
oklch(42.6% 0.093 237.2)
-
Step 900
900
#004767
oklch(37.7% 0.082 236.6)
-
Step 950
950
#002A3F
oklch(27% 0.059 236.5)
#53B6EE 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) | #9CB5F1 | 0.073 |
| Deuteranopia (no green cones) | #86A6ED | 0.060 |
| Tritanopia (no blue cones) | #00C4C9 | 0.082 |
| Achromatopsia (no color) | #ACACAC | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #53B6EE
#53B6EE
oklch(74% 0.123 236.6)
- #E59659
#E59659
oklch(74.1% 0.123 57.1)
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 #53B6EE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sky Blue #00BFFF ΔE 0.036
- Vivid Sky Blue #4CC9F0 ΔE 0.052
- Carolina Blue #8AB8FE ΔE 0.059
- Bright Sky Blue #02CCFE ΔE 0.059
- Lightblue #7BC8F6 ΔE 0.064
- Sky #82CAFC ΔE 0.074
- Turquoise Blue #06B1C4 ΔE 0.074
- Light Cornflower Blue #98C1D9 ΔE 0.083
Use #53B6EE 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.