#4D59C9
Closest named color: Warm Blue (#4B57DB). oklch(51.7% 0.172 274.1), rgb(77, 89, 201).
Aa
White text reads best on this color (5.85:1).
About this color
#4D59C9 is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.172 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.029 away. White text reads best on it, at 5.85:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.172) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.58:1 |
| White text | 5.85:1 |
Values
| HEX | #4D59C9 |
| RGB | rgb(77, 89, 201) |
| HSL | hsl(234, 53%, 55%) |
| OKLCH | oklch(51.7% 0.172 274.1) |
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 #4D59C9 | 5.85:1 | AA | Lc -84.2 | Fine for body text |
| Black text on #4D59C9 | 3.58:1 | AA large text | Lc 25.2 | Dividers and decoration only |
| #4D59C9 text on white | 5.85:1 | AA | Lc 78.9 | Fine for body text |
| #4D59C9 text on black | 3.58:1 | AA large text | Lc -22.9 | 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
#B0BDF7
oklch(80.9% 0.083 274.6)
-
Step 400
400
#8799F3
oklch(70.7% 0.133 273.9)
-
Step 500
500
#6C7DEF
oklch(63.2% 0.17 274.1)
-
Step 600
600
#5663DD
oklch(55.7% 0.184 274.2)
-
Step 700
700 (this color)
#4D59C9
oklch(51.7% 0.172 274.1)
-
Step 800
800
#3A439B
oklch(42.7% 0.142 274.3)
-
Step 900
900
#313A7B
oklch(37.8% 0.11 274)
-
Step 950
950
#1C2248
oklch(26.9% 0.07 274)
#4D59C9 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) | #006ACD | 0.060 |
| Deuteranopia (no green cones) | #005FC7 | 0.054 |
| Tritanopia (no blue cones) | #007488 | 0.148 |
| Achromatopsia (no color) | #656565 | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D59C9
#4D59C9
oklch(51.7% 0.172 274.1)
- #7C6600
#7C6600
oklch(51.7% 0.106 94.1)
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 #4D59C9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.029
- Iris #6258C4 ΔE 0.031
- Dark Periwinkle #665FD1 ΔE 0.042
- Slate Blue #6A5ACD ΔE 0.043
- Light Indigo #6D5ACF ΔE 0.048
- Royal Blue #4169E1 ΔE 0.051
- Bluey Purple #6241C7 ΔE 0.057
- Neon Blue #4361EE ΔE 0.059
Use #4D59C9 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.