#59BFD6
Closest named color: Vivid Sky Blue (#4CC9F0). oklch(75.3% 0.1 214.7), rgb(89, 191, 214).
Aa
Black text reads best on this color (9.84:1).
About this color
#59BFD6 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 75%, its chroma 0.100 and its hue 215°. Its hue sits on the cool side of the wheel. The nearest named color is Vivid Sky Blue (#4CC9F0), ΔE 0.040 away. Black text reads best on it, at 9.84:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (75%) |
| Chroma | moderately saturated (0.100) |
| Temperature | cool |
| Nearest name | Vivid Sky Blue (#4CC9F0) |
| Black text | 9.84:1 |
| White text | 2.13:1 |
Values
| HEX | #59BFD6 |
| RGB | rgb(89, 191, 214) |
| HSL | hsl(191, 60%, 59%) |
| OKLCH | oklch(75.3% 0.1 214.7) |
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 #59BFD6 | 2.13:1 | Fails | Lc -46.3 | Large or bold text, headings |
| Black text on #59BFD6 | 9.84:1 | AAA | Lc 62.3 | Content text, not long reading |
| #59BFD6 text on white | 2.13:1 | Fails | Lc 41.6 | Non-text elements, placeholder text |
| #59BFD6 text on black | 9.84:1 | AAA | Lc -60.6 | 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 400.
-
Step 50
50
#F0F7F9
oklch(97.1% 0.008 216.6)
-
Step 100
100
#DDEDF1
oklch(93.5% 0.018 214.4)
-
Step 200
200
#C0E0E7
oklch(88.6% 0.035 212.4)
-
Step 300
300
#92CBDA
oklch(80.8% 0.062 215.9)
-
Step 400
400 (this color)
#59BFD6
oklch(75.3% 0.1 214.7)
-
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
#005968
oklch(42.7% 0.075 214.2)
-
Step 900
900
#004A57
oklch(37.6% 0.066 214.5)
-
Step 950
950
#002C35
oklch(27% 0.048 215.4)
#59BFD6 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) | #AEB9D7 | 0.089 |
| Deuteranopia (no green cones) | #9CACD6 | 0.081 |
| Tritanopia (no blue cones) | #00C8C6 | 0.051 |
| Achromatopsia (no color) | #B1B1B1 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #59BFD6
#59BFD6
oklch(75.3% 0.1 214.7)
- #E69884
#E69884
oklch(75.3% 0.099 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 #59BFD6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vivid Sky Blue #4CC9F0 ΔE 0.040
- Dark Turquoise #00CED1 ΔE 0.052
- Medium Turquoise #48D1CC ΔE 0.057
- Lightblue #7BC8F6 ΔE 0.060
- Bright Sky Blue #02CCFE ΔE 0.060
- Turquoise Blue #06B1C4 ΔE 0.061
- Light Cornflower Blue #98C1D9 ΔE 0.063
- Deep Sky Blue #00BFFF ΔE 0.065
Use #59BFD6 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.