#2497F2
Closest named color: Chefchaouen Blue (#4895EF). oklch(66% 0.166 248.4), rgb(36, 151, 242).
Aa
Black text reads best on this color (6.78:1).
About this color
#2497F2 is a medium-light, vivid blue. In OKLCH its lightness is 66%, its chroma 0.166 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.020 away. Black text reads best on it, at 6.78:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.166) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 6.78:1 |
| White text | 3.09:1 |
Values
| HEX | #2497F2 |
| RGB | rgb(36, 151, 242) |
| HSL | hsl(207, 89%, 55%) |
| OKLCH | oklch(66% 0.166 248.4) |
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 #2497F2 | 3.09:1 | AA large text | Lc -62.8 | Content text, not long reading |
| Black text on #2497F2 | 6.78:1 | AA | Lc 46.7 | Large or bold text, headings |
| #2497F2 text on white | 3.09:1 | AA large text | Lc 57.4 | Large or bold text, headings |
| #2497F2 text on black | 6.78:1 | AA | Lc -44.4 | Non-text elements, placeholder 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 500.
-
Step 50
50
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DEECF9
oklch(93.6% 0.023 246)
-
Step 200
200
#C3DCF6
oklch(88.4% 0.045 249.4)
-
Step 300
300
#97C6F3
oklch(80.9% 0.081 247.8)
-
Step 400
400
#59A6EE
oklch(70.7% 0.131 248.7)
-
Step 500
500 (this color)
#2497F2
oklch(66% 0.166 248.4)
-
Step 600
600
#0077C6
oklch(55.6% 0.15 248.2)
-
Step 700
700
#0064A8
oklch(49.2% 0.133 248.3)
-
Step 800
800
#00518B
oklch(42.6% 0.117 248.8)
-
Step 900
900
#004475
oklch(37.8% 0.103 248.3)
-
Step 950
950
#032846
oklch(27% 0.069 248.1)
#2497F2 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) | #6B9CF6 | 0.057 |
| Deuteranopia (no green cones) | #4B8AF0 | 0.037 |
| Tritanopia (no blue cones) | #00ADB9 | 0.119 |
| Achromatopsia (no color) | #929292 | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2497F2
#2497F2
oklch(66% 0.166 248.4)
- #CB7F00
#CB7F00
oklch(66.1% 0.145 68.5)
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 #2497F2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.020
- Dodger Blue #1E90FF ΔE 0.029
- Dark Sky Blue #448EE4 ΔE 0.030
- Cornflower Blue #6495ED ΔE 0.045
- Soft Blue #6488EA ΔE 0.055
- Water Blue #0E87CC ΔE 0.069
- Clear Blue #247AFD ΔE 0.079
- Cornflower #6A79F7 ΔE 0.088
Use #2497F2 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.