#4D53DB
Closest named color: Warm Blue (#4B57DB). oklch(52.1% 0.204 274.9), rgb(77, 83, 219).
Aa
White text reads best on this color (5.87:1).
About this color
#4D53DB is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.204 and its hue 275°. 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 5.87:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.204) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.57:1 |
| White text | 5.87:1 |
Values
| HEX | #4D53DB |
| RGB | rgb(77, 83, 219) |
| HSL | hsl(237, 66%, 58%) |
| OKLCH | oklch(52.1% 0.204 274.9) |
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 #4D53DB | 5.87:1 | AA | Lc -84.1 | Fine for body text |
| Black text on #4D53DB | 3.57:1 | AA large text | Lc 25.2 | Dividers and decoration only |
| #4D53DB text on white | 5.87:1 | AA | Lc 78.8 | Fine for body text |
| #4D53DB text on black | 3.57:1 | AA large text | Lc -23.0 | 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
#F3F5FF
oklch(97.2% 0.013 277.1)
-
Step 100
100
#E4E9FE
oklch(93.7% 0.029 275.2)
-
Step 200
200
#CED7FE
oklch(88.5% 0.055 275)
-
Step 300
300
#AEBCFF
oklch(80.9% 0.096 274.9)
-
Step 400
400
#8596FF
oklch(70.6% 0.154 274.8)
-
Step 500
500
#6A77FF
oklch(63% 0.2 275)
-
Step 600
600
#555BF0
oklch(55.7% 0.219 274.9)
-
Step 700
700 (this color)
#4D53DB
oklch(52.1% 0.204 274.9)
-
Step 800
800
#393DA9
oklch(42.7% 0.169 275)
-
Step 900
900
#303685
oklch(37.7% 0.131 274.9)
-
Step 950
950
#1C204E
oklch(26.9% 0.084 275.5)
#4D53DB 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) | #006BDF | 0.067 |
| Deuteranopia (no green cones) | #005ED8 | 0.055 |
| Tritanopia (no blue cones) | #00758F | 0.167 |
| Achromatopsia (no color) | #656565 | 0.204 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D53DB
#4D53DB
oklch(52.1% 0.204 274.9)
- #7D6800
#7D6800
oklch(52.2% 0.107 95.1)
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 #4D53DB, 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 0.042
- Iris #6258C4 ΔE 0.050
- Royal Blue #4169E1 ΔE 0.051
- Azul #1D5DEC ΔE 0.051
- Dark Periwinkle #665FD1 ΔE 0.051
- Slate Blue #6A5ACD ΔE 0.053
- Bluey Purple #6241C7 ΔE 0.055
Use #4D53DB 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.