#4A57DF
Closest named color: Warm Blue (#4B57DB). oklch(52.9% 0.205 273), rgb(74, 87, 223).
Aa
White text reads best on this color (5.64:1).
About this color
#4A57DF is a medium-dark, vivid blue. In OKLCH its lightness is 53%, its chroma 0.205 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.006 away. White text reads best on it, at 5.64:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.205) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.71:1 |
| White text | 5.64:1 |
Values
| HEX | #4A57DF |
| RGB | rgb(74, 87, 223) |
| HSL | hsl(235, 70%, 58%) |
| OKLCH | oklch(52.9% 0.205 273) |
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 #4A57DF | 5.64:1 | AA | Lc -83.0 | Fine for body text |
| Black text on #4A57DF | 3.71:1 | AA large text | Lc 26.4 | Dividers and decoration only |
| #4A57DF text on white | 5.64:1 | AA | Lc 77.7 | Fine for body text |
| #4A57DF text on black | 3.71:1 | AA large text | Lc -24.1 | 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 600.
-
Step 50
50
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E4E9FC
oklch(93.6% 0.026 274.1)
-
Step 200
200
#CED8FC
oklch(88.6% 0.051 273.1)
-
Step 300
300
#ADBDFD
oklch(80.9% 0.092 273.3)
-
Step 400
400
#8398FC
oklch(70.7% 0.148 273.1)
-
Step 500
500
#677BF9
oklch(63.2% 0.188 273.1)
-
Step 600
600 (this color)
#4A57DF
oklch(52.9% 0.205 273)
-
Step 700
700
#424ECA
oklch(49.1% 0.19 272.9)
-
Step 800
800
#3641A3
oklch(42.7% 0.157 272.9)
-
Step 900
900
#2E3881
oklch(37.6% 0.123 273.2)
-
Step 950
950
#1B224C
oklch(27.1% 0.078 273)
#4A57DF 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) | #006EE3 | 0.063 |
| Deuteranopia (no green cones) | #0061DC | 0.050 |
| Tritanopia (no blue cones) | #007993 | 0.166 |
| Achromatopsia (no color) | #676767 | 0.205 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4A57DF
#4A57DF
oklch(52.9% 0.205 273)
- #816900
#816900
oklch(52.9% 0.108 93.1)
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 #4A57DF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.006
- Neon Blue #4361EE ΔE 0.032
- Royal Blue #4169E1 ΔE 0.041
- Azul #1D5DEC ΔE 0.043
- Dark Periwinkle #665FD1 ΔE 0.051
- Iris #6258C4 ΔE 0.054
- Slate Blue #6A5ACD ΔE 0.055
- Light Indigo #6D5ACF ΔE 0.057
Use #4A57DF 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.