#4B53DF
Closest named color: Warm Blue (#4B57DB). oklch(52.3% 0.209 274.1), rgb(75, 83, 223).
Aa
White text reads best on this color (5.83:1).
About this color
#4B53DF is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.209 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.011 away. White text reads best on it, at 5.83:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.209) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.60:1 |
| White text | 5.83:1 |
Values
| HEX | #4B53DF |
| RGB | rgb(75, 83, 223) |
| HSL | hsl(237, 70%, 58%) |
| OKLCH | oklch(52.3% 0.209 274.1) |
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 #4B53DF | 5.83:1 | AA | Lc -83.8 | Fine for body text |
| Black text on #4B53DF | 3.60:1 | AA large text | Lc 25.5 | Dividers and decoration only |
| #4B53DF text on white | 5.83:1 | AA | Lc 78.6 | Fine for body text |
| #4B53DF text on black | 3.60:1 | AA large text | Lc -23.2 | 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
#E3E9FE
oklch(93.6% 0.029 273.1)
-
Step 200
200
#CDD7FF
oklch(88.4% 0.056 274.2)
-
Step 300
300
#ADBCFF
oklch(80.8% 0.096 274.3)
-
Step 400
400
#8497FF
oklch(70.7% 0.153 274)
-
Step 500
500
#6878FF
oklch(63.1% 0.199 274.1)
-
Step 600
600
#525AF3
oklch(55.6% 0.225 274.1)
-
Step 700
700 (this color)
#4B53DF
oklch(52.3% 0.209 274.1)
-
Step 800
800
#373DAB
oklch(42.8% 0.173 274)
-
Step 900
900
#2E3687
oklch(37.7% 0.134 273.8)
-
Step 950
950
#1B204F
oklch(26.9% 0.086 274.6)
#4B53DF 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) | #006CE3 | 0.067 |
| Deuteranopia (no green cones) | #005EDC | 0.053 |
| Tritanopia (no blue cones) | #007791 | 0.171 |
| Achromatopsia (no color) | #656565 | 0.210 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B53DF
#4B53DF
oklch(52.3% 0.209 274.1)
- #7E6800
#7E6800
oklch(52.3% 0.107 94.3)
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 #4B53DF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.011
- Neon Blue #4361EE ΔE 0.038
- Azul #1D5DEC ΔE 0.046
- Royal Blue #4169E1 ΔE 0.050
- Dark Periwinkle #665FD1 ΔE 0.055
- Iris #6258C4 ΔE 0.056
- Slate Blue #6A5ACD ΔE 0.057
- Purpley Blue #5F34E7 ΔE 0.059
Use #4B53DF 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.