#73D9EF
Closest named color: Sky Blue (#87CEEB). oklch(83.2% 0.1 213.5), rgb(115, 217, 239).
Aa
Black text reads best on this color (12.90:1).
About this color
#73D9EF is a light, moderately saturated teal or cyan. In OKLCH its lightness is 83%, its chroma 0.100 and its hue 213°. Its hue sits on the cool side of the wheel. The nearest named color is Sky Blue (#87CEEB), ΔE 0.031 away. Black text reads best on it, at 12.90:1.
| Hue family | Teals and cyans |
| Lightness | light (83%) |
| Chroma | moderately saturated (0.100) |
| Temperature | cool |
| Nearest name | Sky Blue (#87CEEB) |
| Black text | 12.90:1 |
| White text | 1.62:1 |
Values
| HEX | #73D9EF |
| RGB | rgb(115, 217, 239) |
| HSL | hsl(191, 79%, 69%) |
| OKLCH | oklch(83.2% 0.1 213.5) |
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 #73D9EF | 1.62:1 | Fails | Lc -31.4 | Non-text elements, placeholder text |
| Black text on #73D9EF | 12.90:1 | AAA | Lc 76.0 | Fine for body text |
| #73D9EF text on white | 1.62:1 | Fails | Lc 27.8 | Dividers and decoration only |
| #73D9EF text on black | 12.90:1 | AAA | Lc -75.1 | Fine for body text |
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
#ECF8FB
oklch(97.1% 0.013 214.4)
-
Step 100
100
#D5EFF6
oklch(93.5% 0.029 215.7)
-
Step 200
200
#B0E3EF
oklch(88.4% 0.055 213.7)
-
Step 300
300 (this color)
#73D9EF
oklch(83.2% 0.1 213.5)
-
Step 400
400
#00B4CF
oklch(70.8% 0.124 213.4)
-
Step 500
500
#009AB2
oklch(63.1% 0.111 213.9)
-
Step 600
600
#008296
oklch(55.7% 0.098 213.4)
-
Step 700
700
#006D7E
oklch(49.1% 0.086 213.3)
-
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
#002C34
oklch(26.9% 0.047 213.2)
#73D9EF 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) | #C8D3F0 | 0.091 |
| Deuteranopia (no green cones) | #B5C5EF | 0.082 |
| Tritanopia (no blue cones) | #15E2E0 | 0.057 |
| Achromatopsia (no color) | #CBCBCB | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #73D9EF
#73D9EF
oklch(83.2% 0.1 213.5)
- #FFB2A0
#FFB2A0
oklch(83.2% 0.094 33.7)
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 #73D9EF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky Blue #87CEEB ΔE 0.031
- Light Sky Blue #87CEFA ΔE 0.041
- Aqua Blue #02D8E9 ΔE 0.049
- Lightblue #7BC8F6 ΔE 0.051
- Sky #82CAFC ΔE 0.051
- Robin's Egg #6DEDFD ΔE 0.052
- Celeste #A8DADC ΔE 0.056
- Vivid Sky Blue #4CC9F0 ΔE 0.057
Use #73D9EF 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.