#27A5E7
Closest named color: Chefchaouen Blue (#4895EF). oklch(68.7% 0.142 238.1), rgb(39, 165, 231).
Aa
Black text reads best on this color (7.62:1).
About this color
#27A5E7 is a medium-light, vivid blue. In OKLCH its lightness is 69%, its chroma 0.142 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.049 away. Black text reads best on it, at 7.62:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.142) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.62:1 |
| White text | 2.75:1 |
Values
| HEX | #27A5E7 |
| RGB | rgb(39, 165, 231) |
| HSL | hsl(201, 80%, 53%) |
| OKLCH | oklch(68.7% 0.142 238.1) |
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 #27A5E7 | 2.75:1 | Fails | Lc -58.0 | Large or bold text, headings |
| Black text on #27A5E7 | 7.62:1 | AAA | Lc 51.3 | Large or bold text, headings |
| #27A5E7 text on white | 2.75:1 | Fails | Lc 52.7 | Large or bold text, headings |
| #27A5E7 text on black | 7.62:1 | AAA | Lc -49.1 | 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
#EFF7FD
oklch(97.2% 0.012 239.9)
-
Step 100
100
#DBEDF9
oklch(93.6% 0.025 236.8)
-
Step 200
200
#BCDFF6
oklch(88.6% 0.049 236.9)
-
Step 300
300
#89C9F3
oklch(80.8% 0.088 238.1)
-
Step 400
400 (this color)
#27A5E7
oklch(68.7% 0.142 238.1)
-
Step 500
500
#0093D4
oklch(63% 0.141 238.5)
-
Step 600
600
#007CB3
oklch(55.7% 0.124 238.2)
-
Step 700
700
#006897
oklch(49.1% 0.109 238.1)
-
Step 800
800
#00557C
oklch(42.7% 0.094 237.9)
-
Step 900
900
#004768
oklch(37.7% 0.083 237.5)
-
Step 950
950
#002A40
oklch(27% 0.06 237.8)
#27A5E7 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) | #85A5EA | 0.077 |
| Deuteranopia (no green cones) | #6C94E6 | 0.062 |
| Tritanopia (no blue cones) | #00B6BC | 0.092 |
| Achromatopsia (no color) | #9C9C9C | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #27A5E7
#27A5E7
oklch(68.7% 0.142 238.1)
- #DA8132
#DA8132
oklch(68.6% 0.142 58)
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 #27A5E7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.049
- Cornflower Blue #6495ED ΔE 0.058
- Dark Sky Blue #448EE4 ΔE 0.062
- Turquoise Blue #06B1C4 ΔE 0.071
- Deep Sky Blue #00BFFF ΔE 0.072
- Dodger Blue #1E90FF ΔE 0.074
- Soft Blue #6488EA ΔE 0.084
- Faded Blue #658CBB ΔE 0.086
Use #27A5E7 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.