#58C9FF
Closest named color: Vivid Sky Blue (#4CC9F0). oklch(79.2% 0.127 232.3), rgb(88, 201, 255).
Aa
Black text reads best on this color (11.21:1).
About this color
#58C9FF is a light, moderately saturated blue. In OKLCH its lightness is 79%, its chroma 0.127 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Vivid Sky Blue (#4CC9F0), ΔE 0.024 away. Black text reads best on it, at 11.21:1.
| Hue family | Blues |
| Lightness | light (79%) |
| Chroma | moderately saturated (0.127) |
| Temperature | cool |
| Nearest name | Vivid Sky Blue (#4CC9F0) |
| Black text | 11.21:1 |
| White text | 1.87:1 |
Values
| HEX | #58C9FF |
| RGB | rgb(88, 201, 255) |
| HSL | hsl(199, 100%, 67%) |
| OKLCH | oklch(79.2% 0.127 232.3) |
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 #58C9FF | 1.87:1 | Fails | Lc -39.3 | Non-text elements, placeholder text |
| Black text on #58C9FF | 11.21:1 | AAA | Lc 68.7 | Content text, not long reading |
| #58C9FF text on white | 1.87:1 | Fails | Lc 35.1 | Non-text elements, placeholder text |
| #58C9FF text on black | 11.21:1 | AAA | Lc -67.4 | Content text, not long reading |
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
#EBF8FF
oklch(97.1% 0.017 230.9)
-
Step 100
100
#D3EFFF
oklch(93.7% 0.037 232.8)
-
Step 200
200
#ACE2FF
oklch(88.5% 0.068 232)
-
Step 300
300 (this color)
#58C9FF
oklch(79.2% 0.127 232.3)
-
Step 400
400
#00AEEB
oklch(70.6% 0.145 232.7)
-
Step 500
500
#0095CA
oklch(63% 0.13 232.7)
-
Step 600
600
#007EAA
oklch(55.7% 0.113 231.8)
-
Step 700
700
#006990
oklch(49% 0.101 232.9)
-
Step 800
800
#005677
oklch(42.6% 0.088 233.1)
-
Step 900
900
#004863
oklch(37.7% 0.077 231.8)
-
Step 950
950
#002B3D
oklch(27.1% 0.055 231.9)
#58C9FF 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) | #AEC7FF | 0.083 |
| Deuteranopia (no green cones) | #97B6FE | 0.072 |
| Tritanopia (no blue cones) | #00D8DB | 0.082 |
| Achromatopsia (no color) | #BDBDBD | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #58C9FF
#58C9FF
oklch(79.2% 0.127 232.3)
- #FBA36B
#FBA36B
oklch(79.2% 0.127 52.4)
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 #58C9FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vivid Sky Blue #4CC9F0 ΔE 0.024
- Lightblue #7BC8F6 ΔE 0.029
- Bright Sky Blue #02CCFE ΔE 0.029
- Sky #82CAFC ΔE 0.035
- Light Sky Blue #87CEFA ΔE 0.044
- Deep Sky Blue #00BFFF ΔE 0.045
- Sky Blue #87CEEB ΔE 0.052
- Carolina Blue #8AB8FE ΔE 0.058
Use #58C9FF 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.