#4D5BCE
Closest named color: Warm Blue (#4B57DB). oklch(52.5% 0.177 273.4), rgb(77, 91, 206).
Aa
White text reads best on this color (5.67:1).
About this color
#4D5BCE is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.177 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.023 away. White text reads best on it, at 5.67:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.177) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.70:1 |
| White text | 5.67:1 |
Values
| HEX | #4D5BCE |
| RGB | rgb(77, 91, 206) |
| HSL | hsl(233, 57%, 55%) |
| OKLCH | oklch(52.5% 0.177 273.4) |
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 #4D5BCE | 5.67:1 | AA | Lc -83.3 | Fine for body text |
| Black text on #4D5BCE | 3.70:1 | AA large text | Lc 26.1 | Dividers and decoration only |
| #4D5BCE text on white | 5.67:1 | AA | Lc 78.0 | Fine for body text |
| #4D5BCE text on black | 3.70:1 | AA large text | Lc -23.8 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E5E9FA
oklch(93.6% 0.023 275.4)
-
Step 200
200
#CFD8F7
oklch(88.5% 0.044 272.7)
-
Step 300
300
#B0BEF5
oklch(81% 0.079 273.4)
-
Step 400
400
#879AF0
oklch(70.7% 0.128 273.3)
-
Step 500
500
#6B7EEA
oklch(63% 0.162 273.4)
-
Step 600
600 (this color)
#4D5BCE
oklch(52.5% 0.177 273.4)
-
Step 700
700
#4653BC
oklch(49.2% 0.164 273.4)
-
Step 800
800
#394498
oklch(42.6% 0.137 273.5)
-
Step 900
900
#313B79
oklch(37.8% 0.105 273.4)
-
Step 950
950
#1C2347
oklch(27.1% 0.067 272.9)
#4D5BCE 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) | #006DD2 | 0.060 |
| Deuteranopia (no green cones) | #0061CC | 0.053 |
| Tritanopia (no blue cones) | #00768C | 0.148 |
| Achromatopsia (no color) | #676767 | 0.177 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D5BCE
#4D5BCE
oklch(52.5% 0.177 273.4)
- #7F6800
#7F6800
oklch(52.4% 0.107 93.6)
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 #4D5BCE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.023
- Iris #6258C4 ΔE 0.033
- Dark Periwinkle #665FD1 ΔE 0.038
- Slate Blue #6A5ACD ΔE 0.041
- Royal Blue #4169E1 ΔE 0.043
- Light Indigo #6D5ACF ΔE 0.046
- Neon Blue #4361EE ΔE 0.051
- Azul #1D5DEC ΔE 0.061
Use #4D5BCE 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.