#457EC2
Closest named color: Windows Blue (#3778BF). oklch(58.6% 0.121 254.1), rgb(69, 126, 194).
Aa
Black text reads best on this color (5.01:1).
About this color
#457EC2 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.121 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.022 away. Black text reads best on it, at 5.01:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.121) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 5.01:1 |
| White text | 4.18:1 |
Values
| HEX | #457EC2 |
| RGB | rgb(69, 126, 194) |
| HSL | hsl(213, 51%, 52%) |
| OKLCH | oklch(58.6% 0.121 254.1) |
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 #457EC2 | 4.18:1 | AA large text | Lc -74.1 | Content text, not long reading |
| Black text on #457EC2 | 5.01:1 | AA | Lc 35.5 | Non-text elements, placeholder text |
| #457EC2 text on white | 4.18:1 | AA large text | Lc 68.6 | Content text, not long reading |
| #457EC2 text on black | 5.01:1 | AA | Lc -33.0 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF4
oklch(93.7% 0.015 251.2)
-
Step 200
200
#CCDBED
oklch(88.6% 0.03 253)
-
Step 300
300
#A9C3E4
oklch(80.9% 0.055 254.5)
-
Step 400
400
#7BA4D6
oklch(70.8% 0.086 253.8)
-
Step 500
500
#588CCB
oklch(63.1% 0.111 254.1)
-
Step 600
600 (this color)
#457EC2
oklch(58.6% 0.121 254.1)
-
Step 700
700
#2E629F
oklch(49.1% 0.113 254.1)
-
Step 800
800
#275081
oklch(42.7% 0.094 254.3)
-
Step 900
900
#244367
oklch(37.7% 0.072 253.4)
-
Step 950
950
#16273C
oklch(26.9% 0.046 254.4)
#457EC2 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) | #6082C5 | 0.032 |
| Deuteranopia (no green cones) | #4F76C1 | 0.023 |
| Tritanopia (no blue cones) | #008E97 | 0.098 |
| Achromatopsia (no color) | #7C7C7C | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #457EC2
#457EC2
oklch(58.6% 0.121 254.1)
- #A66F0B
#A66F0B
oklch(58.5% 0.121 73.9)
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 #457EC2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.022
- Cool Blue #4984B8 ΔE 0.026
- Steel Blue #4682B4 ΔE 0.027
- Water Blue #0E87CC ΔE 0.035
- Off Blue #5684AE ΔE 0.043
- Nice Blue #107AB0 ΔE 0.046
- Flat Blue #3C73A8 ΔE 0.048
- Dusty Blue #5A86AD ΔE 0.049
Use #457EC2 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.