#4857CC
Closest named color: Warm Blue (#4B57DB). oklch(51.3% 0.18 272.8), rgb(72, 87, 204).
Aa
White text reads best on this color (5.98:1).
About this color
#4857CC is a medium-dark, vivid blue. In OKLCH its lightness is 51%, its chroma 0.180 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.024 away. White text reads best on it, at 5.98:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.180) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.51:1 |
| White text | 5.98:1 |
Values
| HEX | #4857CC |
| RGB | rgb(72, 87, 204) |
| HSL | hsl(233, 56%, 54%) |
| OKLCH | oklch(51.3% 0.18 272.8) |
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 #4857CC | 5.98:1 | AA | Lc -84.7 | Fine for body text |
| Black text on #4857CC | 3.51:1 | AA large text | Lc 24.6 | Dividers and decoration only |
| #4857CC text on white | 5.98:1 | AA | Lc 79.5 | Fine for body text |
| #4857CC text on black | 3.51:1 | AA large text | Lc -22.3 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E4E9FB
oklch(93.6% 0.025 273.5)
-
Step 200
200
#CED8FA
oklch(88.5% 0.048 272.4)
-
Step 300
300
#ADBDFA
oklch(80.8% 0.088 272.9)
-
Step 400
400
#8499F7
oklch(70.7% 0.14 272.8)
-
Step 500
500
#687CF4
oklch(63.1% 0.179 273.1)
-
Step 600
600
#5162E2
oklch(55.6% 0.194 272.7)
-
Step 700
700 (this color)
#4857CC
oklch(51.3% 0.18 272.8)
-
Step 800
800
#36429F
oklch(42.6% 0.15 272.7)
-
Step 900
900
#2E397E
oklch(37.6% 0.117 272.7)
-
Step 950
950
#1B224A
oklch(27% 0.074 273)
#4857CC 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) | #0069D0 | 0.057 |
| Deuteranopia (no green cones) | #005ECA | 0.049 |
| Tritanopia (no blue cones) | #007389 | 0.149 |
| Achromatopsia (no color) | #636363 | 0.181 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4857CC
#4857CC
oklch(51.3% 0.18 272.8)
- #7C6400
#7C6400
oklch(51.2% 0.105 92.3)
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 #4857CC, closest first.
No curated palette has a color within ΔE 0.04 of #4857CC.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.024
- Iris #6258C4 ΔE 0.039
- Dark Periwinkle #665FD1 ΔE 0.049
- Slate Blue #6A5ACD ΔE 0.050
- Royal Blue #4169E1 ΔE 0.052
- Light Indigo #6D5ACF ΔE 0.055
- Neon Blue #4361EE ΔE 0.056
- Bluey Purple #6241C7 ΔE 0.057
Use #4857CC 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.