#53B8EF
Closest named color: Deep Sky Blue (#00BFFF). oklch(74.5% 0.123 235.6), rgb(83, 184, 239).
Aa
Black text reads best on this color (9.47:1).
About this color
#53B8EF is a medium-light, moderately saturated blue. In OKLCH its lightness is 75%, its chroma 0.123 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sky Blue (#00BFFF), ΔE 0.034 away. Black text reads best on it, at 9.47:1.
| Hue family | Blues |
| Lightness | medium-light (75%) |
| Chroma | moderately saturated (0.123) |
| Temperature | cool |
| Nearest name | Deep Sky Blue (#00BFFF) |
| Black text | 9.47:1 |
| White text | 2.21:1 |
Values
| HEX | #53B8EF |
| RGB | rgb(83, 184, 239) |
| HSL | hsl(201, 83%, 63%) |
| OKLCH | oklch(74.5% 0.123 235.6) |
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 #53B8EF | 2.21:1 | Fails | Lc -48.2 | Large or bold text, headings |
| Black text on #53B8EF | 9.47:1 | AAA | Lc 60.6 | Content text, not long reading |
| #53B8EF text on white | 2.21:1 | Fails | Lc 43.4 | Non-text elements, placeholder text |
| #53B8EF text on black | 9.47:1 | AAA | Lc -58.8 | 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
#EFF7FB
oklch(97.1% 0.01 228.9)
-
Step 100
100
#DCEDF7
oklch(93.6% 0.023 233.4)
-
Step 200
200
#BFDEF2
oklch(88.4% 0.043 236.3)
-
Step 300
300
#90C9EC
oklch(80.9% 0.077 235.9)
-
Step 400
400 (this color)
#53B8EF
oklch(74.5% 0.123 235.6)
-
Step 500
500
#0094CF
oklch(63% 0.135 235.8)
-
Step 600
600
#007DAF
oklch(55.7% 0.119 235.4)
-
Step 700
700
#006994
oklch(49.2% 0.105 235.5)
-
Step 800
800
#00567A
oklch(42.8% 0.091 235.4)
-
Step 900
900
#004766
oklch(37.6% 0.081 235.8)
-
Step 950
950
#002A3F
oklch(27% 0.059 236.5)
#53B8EF 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) | #9EB7F2 | 0.075 |
| Deuteranopia (no green cones) | #88A7EE | 0.063 |
| Tritanopia (no blue cones) | #00C6CB | 0.081 |
| Achromatopsia (no color) | #AEAEAE | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #53B8EF
#53B8EF
oklch(74.5% 0.123 235.6)
- #E7975C
#E7975C
oklch(74.5% 0.122 56)
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 #53B8EF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sky Blue #00BFFF ΔE 0.034
- Vivid Sky Blue #4CC9F0 ΔE 0.047
- Bright Sky Blue #02CCFE ΔE 0.054
- Carolina Blue #8AB8FE ΔE 0.057
- Lightblue #7BC8F6 ΔE 0.059
- Sky #82CAFC ΔE 0.069
- Turquoise Blue #06B1C4 ΔE 0.075
- Light Sky Blue #87CEFA ΔE 0.080
Use #53B8EF 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.