#15A2DB
Closest named color: Chefchaouen Blue (#4895EF). oklch(67.1% 0.135 233.4), rgb(21, 162, 219).
Aa
Black text reads best on this color (7.22:1).
About this color
#15A2DB is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.135 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.056 away. Black text reads best on it, at 7.22:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.135) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.22:1 |
| White text | 2.90:1 |
Values
| HEX | #15A2DB |
| RGB | rgb(21, 162, 219) |
| HSL | hsl(197, 83%, 47%) |
| OKLCH | oklch(67.1% 0.135 233.4) |
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 #15A2DB | 2.90:1 | Fails | Lc -60.2 | Content text, not long reading |
| Black text on #15A2DB | 7.22:1 | AAA | Lc 49.2 | Large or bold text, headings |
| #15A2DB text on white | 2.90:1 | Fails | Lc 54.9 | Large or bold text, headings |
| #15A2DB text on black | 7.22:1 | AAA | Lc -47.0 | 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
#EEF7FC
oklch(97.1% 0.012 231.7)
-
Step 100
100
#DBEDF8
oklch(93.6% 0.024 234.4)
-
Step 200
200
#BCDFF4
oklch(88.5% 0.047 234.4)
-
Step 300
300
#88CAEF
oklch(80.8% 0.085 233.8)
-
Step 400
400 (this color)
#15A2DB
oklch(67.1% 0.135 233.4)
-
Step 500
500
#0095CC
oklch(63.1% 0.132 233.7)
-
Step 600
600
#007DAC
oklch(55.5% 0.116 233.8)
-
Step 700
700
#006991
oklch(49% 0.102 233.6)
-
Step 800
800
#005678
oklch(42.7% 0.089 233.9)
-
Step 900
900
#004864
oklch(37.8% 0.078 232.8)
-
Step 950
950
#002A3D
oklch(26.9% 0.056 233.8)
#15A2DB 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) | #85A1DE | 0.084 |
| Deuteranopia (no green cones) | #6D90DA | 0.070 |
| Tritanopia (no blue cones) | #00B1B6 | 0.080 |
| Achromatopsia (no color) | #979797 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #15A2DB
#15A2DB
oklch(67.1% 0.135 233.4)
- #D57C3C
#D57C3C
oklch(67.2% 0.135 53.6)
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 #15A2DB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.056
- Dark Sky Blue #448EE4 ΔE 0.061
- Turquoise Blue #06B1C4 ΔE 0.063
- Cornflower Blue #6495ED ΔE 0.067
- Faded Blue #658CBB ΔE 0.076
- Water Blue #0E87CC ΔE 0.076
- Dodger Blue #1E90FF ΔE 0.080
- Greyblue #77A1B5 ΔE 0.083
Use #15A2DB 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.