#4D59CB
Closest named color: Warm Blue (#4B57DB). oklch(51.9% 0.175 274), rgb(77, 89, 203).
Aa
White text reads best on this color (5.82:1).
About this color
#4D59CB is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.175 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.025 away. White text reads best on it, at 5.82:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.175) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.60:1 |
| White text | 5.82:1 |
Values
| HEX | #4D59CB |
| RGB | rgb(77, 89, 203) |
| HSL | hsl(234, 55%, 55%) |
| OKLCH | oklch(51.9% 0.175 274) |
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 #4D59CB | 5.82:1 | AA | Lc -84.0 | Fine for body text |
| Black text on #4D59CB | 3.60:1 | AA large text | Lc 25.3 | Dividers and decoration only |
| #4D59CB text on white | 5.82:1 | AA | Lc 78.7 | Fine for body text |
| #4D59CB text on black | 3.60:1 | AA large text | Lc -23.1 | 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 700.
-
Step 50
50
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E4E9FB
oklch(93.6% 0.025 273.5)
-
Step 200
200
#CFD8F9
oklch(88.6% 0.047 273.4)
-
Step 300
300
#AFBDF8
oklch(80.9% 0.085 274)
-
Step 400
400
#8799F4
oklch(70.7% 0.135 274)
-
Step 500
500
#6B7CF0
oklch(63% 0.173 274.1)
-
Step 600
600
#5562DF
oklch(55.6% 0.189 274)
-
Step 700
700 (this color)
#4D59CB
oklch(51.9% 0.175 274)
-
Step 800
800
#39439D
oklch(42.8% 0.145 273.8)
-
Step 900
900
#31397C
oklch(37.6% 0.113 274.5)
-
Step 950
950
#1C2249
oklch(27% 0.072 274)
#4D59CB 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) | #006BCF | 0.061 |
| Deuteranopia (no green cones) | #0060C9 | 0.054 |
| Tritanopia (no blue cones) | #007489 | 0.148 |
| Achromatopsia (no color) | #656565 | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D59CB
#4D59CB
oklch(51.9% 0.175 274)
- #7D6700
#7D6700
oklch(52% 0.107 94.2)
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 #4D59CB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.025
- Iris #6258C4 ΔE 0.031
- Dark Periwinkle #665FD1 ΔE 0.041
- Slate Blue #6A5ACD ΔE 0.043
- Light Indigo #6D5ACF ΔE 0.048
- Royal Blue #4169E1 ΔE 0.049
- Neon Blue #4361EE ΔE 0.056
- Bluey Purple #6241C7 ΔE 0.057
Use #4D59CB 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.