#2568EB
Closest named color: Cerulean Blue (#056EEE). oklch(55.6% 0.209 261.9), rgb(37, 104, 235).
Aa
White text reads best on this color (4.93:1).
About this color
#2568EB is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.209 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Cerulean Blue (#056EEE), ΔE 0.016 away. White text reads best on it, at 4.93:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.209) |
| Temperature | cool |
| Nearest name | Cerulean Blue (#056EEE) |
| Black text | 4.25:1 |
| White text | 4.93:1 |
Values
| HEX | #2568EB |
| RGB | rgb(37, 104, 235) |
| HSL | hsl(220, 83%, 53%) |
| OKLCH | oklch(55.6% 0.209 261.9) |
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 #2568EB | 4.93:1 | AA | Lc -78.9 | Fine for body text |
| Black text on #2568EB | 4.25:1 | AA large text | Lc 30.6 | Non-text elements, placeholder text |
| #2568EB text on white | 4.93:1 | AA | Lc 73.5 | Content text, not long reading |
| #2568EB text on black | 4.25:1 | AA large text | Lc -28.2 | Dividers and decoration only |
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 600.
-
Step 50
50
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EAFD
oklch(93.5% 0.028 263.4)
-
Step 200
200
#C6DAFD
oklch(88.5% 0.053 261.7)
-
Step 300
300
#9FC1FE
oklch(80.8% 0.094 261.9)
-
Step 400
400
#6B9EFE
oklch(70.6% 0.151 262.1)
-
Step 500
500
#4482FC
oklch(63% 0.193 262.1)
-
Step 600
600 (this color)
#2568EB
oklch(55.6% 0.209 261.9)
-
Step 700
700
#1855CC
oklch(49% 0.195 261.9)
-
Step 800
800
#1647A5
oklch(42.7% 0.161 261.7)
-
Step 900
900
#193D83
oklch(37.8% 0.125 261.9)
-
Step 950
950
#0F244D
oklch(27% 0.081 262.1)
#2568EB 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) | #007AEF | 0.043 |
| Deuteranopia (no green cones) | #0068E8 | 0.014 |
| Tritanopia (no blue cones) | #00899F | 0.161 |
| Achromatopsia (no color) | #707070 | 0.210 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2568EB
#2568EB
oklch(55.6% 0.209 261.9)
- #946B00
#946B00
oklch(55.5% 0.114 82)
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 #2568EB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cerulean Blue #056EEE ΔE 0.016
- Royal Blue #4169E1 ΔE 0.027
- Neon Blue #4361EE ΔE 0.027
- Azul #1D5DEC ΔE 0.027
- Bright Blue #0165FC ΔE 0.029
- Clear Blue #247AFD ΔE 0.051
- Warm Blue #4B57DB ΔE 0.051
- Electric Blue #0652FF ΔE 0.060
Use #2568EB 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.