#2470FB
Closest named color: Cerulean Blue (#056EEE). oklch(58.4% 0.22 261.3), rgb(36, 112, 251).
Aa
Black text reads best on this color (4.78:1).
About this color
#2470FB is a medium-dark, vivid blue. In OKLCH its lightness is 58%, its chroma 0.220 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Cerulean Blue (#056EEE), ΔE 0.024 away. Black text reads best on it, at 4.78:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.220) |
| Temperature | cool |
| Nearest name | Cerulean Blue (#056EEE) |
| Black text | 4.78:1 |
| White text | 4.38:1 |
Values
| HEX | #2470FB |
| RGB | rgb(36, 112, 251) |
| HSL | hsl(219, 96%, 56%) |
| OKLCH | oklch(58.4% 0.22 261.3) |
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 #2470FB | 4.38:1 | AA large text | Lc -75.2 | Fine for body text |
| Black text on #2470FB | 4.78:1 | AA | Lc 34.4 | Non-text elements, placeholder text |
| #2470FB text on white | 4.38:1 | AA large text | Lc 69.7 | Content text, not long reading |
| #2470FB text on black | 4.78:1 | AA | Lc -32.0 | 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 600.
-
Step 50
50
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#DFEBFE
oklch(93.7% 0.029 259.6)
-
Step 200
200
#C5DAFE
oklch(88.4% 0.055 261.2)
-
Step 300
300
#9EC1FF
oklch(80.8% 0.096 261.6)
-
Step 400
400
#699FFF
oklch(70.8% 0.152 261.1)
-
Step 500
500
#3F82FF
oklch(63.1% 0.198 261.5)
-
Step 600
600 (this color)
#2470FB
oklch(58.4% 0.22 261.3)
-
Step 700
700
#0C54D2
oklch(49.1% 0.205 261.4)
-
Step 800
800
#0E46AA
oklch(42.8% 0.17 261.3)
-
Step 900
900
#143C86
oklch(37.6% 0.132 261.4)
-
Step 950
950
#0D244F
oklch(27% 0.084 261.5)
#2470FB 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) | #0083FF | 0.045 |
| Deuteranopia (no green cones) | #006FF8 | 0.013 |
| Tritanopia (no blue cones) | #0093AB | 0.168 |
| Achromatopsia (no color) | #787878 | 0.221 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2470FB
#2470FB
oklch(58.4% 0.22 261.3)
- #9F7300
#9F7300
oklch(58.4% 0.12 81.8)
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 #2470FB, closest first.
No curated palette has a color within ΔE 0.04 of #2470FB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cerulean Blue #056EEE ΔE 0.024
- Clear Blue #247AFD ΔE 0.024
- Bright Blue #0165FC ΔE 0.031
- Neon Blue #4361EE ΔE 0.041
- Royal Blue #4169E1 ΔE 0.044
- Azul #1D5DEC ΔE 0.051
- Electric Blue #0652FF ΔE 0.070
- Cornflower #6A79F7 ΔE 0.073
Use #2470FB 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.