#4457DC
Closest named color: Warm Blue (#4B57DB). oklch(52.4% 0.202 271.3), rgb(68, 87, 220).
Aa
White text reads best on this color (5.76:1).
About this color
#4457DC is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.202 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.009 away. White text reads best on it, at 5.76:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.202) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.64:1 |
| White text | 5.76:1 |
Values
| HEX | #4457DC |
| RGB | rgb(68, 87, 220) |
| HSL | hsl(233, 68%, 56%) |
| OKLCH | oklch(52.4% 0.202 271.3) |
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 #4457DC | 5.76:1 | AA | Lc -83.6 | Fine for body text |
| Black text on #4457DC | 3.64:1 | AA large text | Lc 25.8 | Dividers and decoration only |
| #4457DC text on white | 5.76:1 | AA | Lc 78.3 | Fine for body text |
| #4457DC text on black | 3.64:1 | AA large text | Lc -23.5 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3E9FC
oklch(93.5% 0.027 271.9)
-
Step 200
200
#CDD8FC
oklch(88.5% 0.051 271.9)
-
Step 300
300
#ABBEFC
oklch(80.9% 0.09 271.1)
-
Step 400
400
#8099FB
oklch(70.6% 0.146 271.4)
-
Step 500
500
#637CF8
oklch(63.1% 0.186 271.5)
-
Step 600
600 (this color)
#4457DC
oklch(52.4% 0.202 271.3)
-
Step 700
700
#3E50C9
oklch(49.2% 0.188 271.2)
-
Step 800
800
#3342A3
oklch(42.7% 0.157 271.4)
-
Step 900
900
#2C3981
oklch(37.7% 0.122 271.6)
-
Step 950
950
#19224B
oklch(26.9% 0.077 271.1)
#4457DC 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) | #006DE0 | 0.058 |
| Deuteranopia (no green cones) | #005FD9 | 0.043 |
| Tritanopia (no blue cones) | #007991 | 0.164 |
| Achromatopsia (no color) | #666666 | 0.203 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4457DC
#4457DC
oklch(52.4% 0.202 271.3)
- #816700
#816700
oklch(52.4% 0.107 91.4)
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 #4457DC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.009
- Neon Blue #4361EE ΔE 0.035
- Azul #1D5DEC ΔE 0.040
- Royal Blue #4169E1 ΔE 0.042
- Dark Periwinkle #665FD1 ΔE 0.055
- Iris #6258C4 ΔE 0.055
- Slate Blue #6A5ACD ΔE 0.059
- Light Indigo #6D5ACF ΔE 0.062
Use #4457DC 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.