#4357C6
Closest named color: Warm Blue (#4B57DB). oklch(50.5% 0.174 271.1), rgb(67, 87, 198).
Aa
White text reads best on this color (6.14:1).
About this color
#4357C6 is a medium-dark, vivid blue. In OKLCH its lightness is 51%, its chroma 0.174 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.034 away. White text reads best on it, at 6.14:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.174) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.41:1 |
| White text | 6.14:1 |
Values
| HEX | #4357C6 |
| RGB | rgb(67, 87, 198) |
| HSL | hsl(231, 53%, 52%) |
| OKLCH | oklch(50.5% 0.174 271.1) |
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 #4357C6 | 6.14:1 | AA | Lc -85.4 | Fine for body text |
| Black text on #4357C6 | 3.41:1 | AA large text | Lc 23.8 | Dividers and decoration only |
| #4357C6 text on white | 6.14:1 | AA | Lc 80.3 | Fine for body text |
| #4357C6 text on black | 3.41:1 | AA large text | Lc -21.6 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E4E9FB
oklch(93.6% 0.025 273.5)
-
Step 200
200
#CDD8F9
oklch(88.4% 0.047 270.8)
-
Step 300
300
#ACBEF8
oklch(80.8% 0.085 271.1)
-
Step 400
400
#829AF4
oklch(70.6% 0.135 271.3)
-
Step 500
500
#657EF0
oklch(63% 0.172 271.4)
-
Step 600
600
#4E65DE
oklch(55.6% 0.185 271)
-
Step 700
700 (this color)
#4357C6
oklch(50.5% 0.174 271.1)
-
Step 800
800
#34449C
oklch(42.6% 0.144 271.2)
-
Step 900
900
#2D3B7C
oklch(37.8% 0.111 271)
-
Step 950
950
#1A2349
oklch(27.1% 0.071 270.9)
#4357C6 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) | #0068CA | 0.053 |
| Deuteranopia (no green cones) | #005CC4 | 0.044 |
| Tritanopia (no blue cones) | #007286 | 0.143 |
| Achromatopsia (no color) | #626262 | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4357C6
#4357C6
oklch(50.5% 0.174 271.1)
- #7B6200
#7B6200
oklch(50.7% 0.104 91.3)
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 #4357C6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.034
- Iris #6258C4 ΔE 0.044
- Dark Periwinkle #665FD1 ΔE 0.057
- Slate Blue #6A5ACD ΔE 0.058
- Royal Blue #4169E1 ΔE 0.058
- Blue With A Hint Of Purple #533CC6 ΔE 0.059
- Bluey Purple #6241C7 ΔE 0.061
- Light Indigo #6D5ACF ΔE 0.063
Use #4357C6 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.