#2457C2
Closest named color: Blue Blue (#2242C7). oklch(48.8% 0.177 262.6), rgb(36, 87, 194).
Aa
White text reads best on this color (6.52:1).
About this color
#2457C2 is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.177 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.050 away. White text reads best on it, at 6.52:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.177) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 3.21:1 |
| White text | 6.52:1 |
Values
| HEX | #2457C2 |
| RGB | rgb(36, 87, 194) |
| HSL | hsl(221, 69%, 45%) |
| OKLCH | oklch(48.8% 0.177 262.6) |
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 #2457C2 | 6.52:1 | AA | Lc -86.9 | Fine for body text |
| Black text on #2457C2 | 3.21:1 | AA large text | Lc 22.3 | Dividers and decoration only |
| #2457C2 text on white | 6.52:1 | AA | Lc 81.8 | Fine for body text |
| #2457C2 text on black | 3.21:1 | AA large text | Lc -20.1 | 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 700.
-
Step 50
50
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EAFB
oklch(93.5% 0.025 263.3)
-
Step 200
200
#C9DAF9
oklch(88.5% 0.047 262.5)
-
Step 300
300
#A3C1F9
oklch(80.9% 0.086 262.7)
-
Step 400
400
#729FF6
oklch(70.8% 0.137 262.6)
-
Step 500
500
#4D84F2
oklch(63.1% 0.175 262.5)
-
Step 600
600
#326AE0
oklch(55.5% 0.19 262.7)
-
Step 700
700 (this color)
#2457C2
oklch(48.8% 0.177 262.6)
-
Step 800
800
#20489E
oklch(42.7% 0.147 262.9)
-
Step 900
900
#1F3E7D
oklch(37.8% 0.113 262.6)
-
Step 950
950
#122549
oklch(27% 0.071 261.9)
#2457C2 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) | #0065C6 | 0.036 |
| Deuteranopia (no green cones) | #0057C0 | 0.016 |
| Tritanopia (no blue cones) | #007284 | 0.137 |
| Achromatopsia (no color) | #5E5E5E | 0.177 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2457C2
#2457C2
oklch(48.8% 0.177 262.6)
- #7C5900
#7C5900
oklch(48.8% 0.101 81.9)
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 #2457C2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.050
- Warm Blue #4B57DB ΔE 0.057
- Mid Blue #276AB3 ΔE 0.059
- Azul #1D5DEC ΔE 0.066
- Majorelle Blue #3F37C9 ΔE 0.070
- Royal Blue #4169E1 ΔE 0.073
- Blue With A Hint Of Purple #533CC6 ΔE 0.074
- Iris #6258C4 ΔE 0.074
Use #2457C2 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.