#2D9EEA
Closest named color: Chefchaouen Blue (#4895EF). oklch(67.3% 0.149 243.8), rgb(45, 158, 234).
Aa
Black text reads best on this color (7.19:1).
About this color
#2D9EEA is a medium-light, vivid blue. In OKLCH its lightness is 67%, its chroma 0.149 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.030 away. Black text reads best on it, at 7.19:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.149) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.19:1 |
| White text | 2.92:1 |
Values
| HEX | #2D9EEA |
| RGB | rgb(45, 158, 234) |
| HSL | hsl(204, 82%, 55%) |
| OKLCH | oklch(67.3% 0.149 243.8) |
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 #2D9EEA | 2.92:1 | Fails | Lc -60.5 | Content text, not long reading |
| Black text on #2D9EEA | 7.19:1 | AAA | Lc 48.9 | Large or bold text, headings |
| #2D9EEA text on white | 2.92:1 | Fails | Lc 55.1 | Large or bold text, headings |
| #2D9EEA text on black | 7.19:1 | AAA | Lc -46.7 | 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
#DBECFB
oklch(93.5% 0.027 244.7)
-
Step 200
200
#BDDEF9
oklch(88.5% 0.051 243)
-
Step 300
300
#8CC8F9
oklch(81% 0.093 243.9)
-
Step 400
400 (this color)
#2D9EEA
oklch(67.3% 0.149 243.8)
-
Step 500
500
#0091DF
oklch(63.2% 0.154 243.6)
-
Step 600
600
#0079BC
oklch(55.5% 0.136 243.9)
-
Step 700
700
#00669F
oklch(49.1% 0.12 243.6)
-
Step 800
800
#005383
oklch(42.6% 0.105 243.8)
-
Step 900
900
#00456E
oklch(37.6% 0.092 243.7)
-
Step 950
950
#002944
oklch(27% 0.066 243.6)
#2D9EEA 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) | #7AA0ED | 0.065 |
| Deuteranopia (no green cones) | #608FE9 | 0.050 |
| Tritanopia (no blue cones) | #00B1B9 | 0.104 |
| Achromatopsia (no color) | #979797 | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D9EEA
#2D9EEA
oklch(67.3% 0.149 243.8)
- #D47F11
#D47F11
oklch(67.3% 0.148 63.9)
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 #2D9EEA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.030
- Dark Sky Blue #448EE4 ΔE 0.042
- Cornflower Blue #6495ED ΔE 0.045
- Dodger Blue #1E90FF ΔE 0.054
- Soft Blue #6488EA ΔE 0.066
- Water Blue #0E87CC ΔE 0.075
- Faded Blue #658CBB ΔE 0.080
- Deep Sky Blue #00BFFF ΔE 0.088
Use #2D9EEA 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.