#4457DB
Closest named color: Warm Blue (#4B57DB). oklch(52.3% 0.201 271.3), rgb(68, 87, 219).
Aa
White text reads best on this color (5.78:1).
About this color
#4457DB is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.201 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 5.78:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.201) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.63:1 |
| White text | 5.78:1 |
Values
| HEX | #4457DB |
| RGB | rgb(68, 87, 219) |
| HSL | hsl(232, 68%, 56%) |
| OKLCH | oklch(52.3% 0.201 271.3) |
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 #4457DB | 5.78:1 | AA | Lc -83.6 | Fine for body text |
| Black text on #4457DB | 3.63:1 | AA large text | Lc 25.7 | Dividers and decoration only |
| #4457DB text on white | 5.78:1 | AA | Lc 78.4 | Fine for body text |
| #4457DB text on black | 3.63:1 | AA large text | Lc -23.4 | 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
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E3E9FD
oklch(93.5% 0.028 272.5)
-
Step 200
200
#CCD8FE
oklch(88.5% 0.054 271.5)
-
Step 300
300
#AABEFF
oklch(81% 0.095 271)
-
Step 400
400
#7F99FF
oklch(70.8% 0.152 271.3)
-
Step 500
500
#617AFF
oklch(63% 0.198 271.6)
-
Step 600
600
#4A5FEF
oklch(55.7% 0.216 271.2)
-
Step 700
700 (this color)
#4457DB
oklch(52.3% 0.201 271.3)
-
Step 800
800
#3140A8
oklch(42.7% 0.166 271.1)
-
Step 900
900
#2A3885
oklch(37.7% 0.13 271.1)
-
Step 950
950
#19224E
oklch(27.1% 0.081 271.3)
#4457DB 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) | #006DDF | 0.058 |
| Deuteranopia (no green cones) | #005FD8 | 0.043 |
| Tritanopia (no blue cones) | #007891 | 0.161 |
| Achromatopsia (no color) | #666666 | 0.202 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4457DB
#4457DB
oklch(52.3% 0.201 271.3)
- #806700
#806700
oklch(52.3% 0.107 92.1)
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 #4457DB, 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 0.037
- Azul #1D5DEC ΔE 0.041
- Royal Blue #4169E1 ΔE 0.043
- Iris #6258C4 ΔE 0.054
- Dark Periwinkle #665FD1 ΔE 0.055
- Slate Blue #6A5ACD ΔE 0.059
- Light Indigo #6D5ACF ΔE 0.062
Use #4457DB 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.