#37A2F2
Closest named color: Chefchaouen Blue (#4895EF). oklch(68.9% 0.151 245.6), rgb(55, 162, 242).
Aa
Black text reads best on this color (7.61:1).
About this color
#37A2F2 is a medium-light, vivid blue. In OKLCH its lightness is 69%, its chroma 0.151 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.034 away. Black text reads best on it, at 7.61:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.151) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.61:1 |
| White text | 2.75:1 |
Values
| HEX | #37A2F2 |
| RGB | rgb(55, 162, 242) |
| HSL | hsl(206, 88%, 58%) |
| OKLCH | oklch(68.9% 0.151 245.6) |
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 #37A2F2 | 2.75:1 | Fails | Lc -58.1 | Large or bold text, headings |
| Black text on #37A2F2 | 7.61:1 | AAA | Lc 51.2 | Large or bold text, headings |
| #37A2F2 text on white | 2.75:1 | Fails | Lc 52.9 | Large or bold text, headings |
| #37A2F2 text on black | 7.61:1 | AAA | Lc -49.0 | 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
#EFF7FE
oklch(97.2% 0.013 244.3)
-
Step 100
100
#DCECFC
oklch(93.6% 0.028 248.1)
-
Step 200
200
#BDDDFA
oklch(88.4% 0.053 245.8)
-
Step 300
300
#8CC7FA
oklch(80.8% 0.095 245.4)
-
Step 400
400 (this color)
#37A2F2
oklch(68.9% 0.151 245.6)
-
Step 500
500
#0090E3
oklch(63.2% 0.16 245.3)
-
Step 600
600
#0078C0
oklch(55.5% 0.142 245.8)
-
Step 700
700
#0065A2
oklch(49% 0.125 245.5)
-
Step 800
800
#005386
oklch(42.8% 0.108 245.3)
-
Step 900
900
#004571
oklch(37.8% 0.096 245.5)
-
Step 950
950
#002946
oklch(27.2% 0.069 245.4)
#37A2F2 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) | #7DA5F5 | 0.062 |
| Deuteranopia (no green cones) | #6294F0 | 0.045 |
| Tritanopia (no blue cones) | #00B5BF | 0.106 |
| Achromatopsia (no color) | #9C9C9C | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37A2F2
#37A2F2
oklch(68.9% 0.151 245.6)
- #D9840C
#D9840C
oklch(68.8% 0.151 65.4)
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 #37A2F2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.034
- Cornflower Blue #6495ED ΔE 0.044
- Dark Sky Blue #448EE4 ΔE 0.053
- Dodger Blue #1E90FF ΔE 0.058
- Soft Blue #6488EA ΔE 0.071
- Deep Sky Blue #00BFFF ΔE 0.076
- Periwinkle Blue #8F99FB ΔE 0.086
- Faded Blue #658CBB ΔE 0.091
Use #37A2F2 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.