#5755D4
Closest named color: Warm Blue (#4B57DB). oklch(52.5% 0.19 278.3), rgb(87, 85, 212).
Aa
White text reads best on this color (5.74:1).
About this color
#5755D4 is a medium-dark, vivid blue. In OKLCH its lightness is 53%, its chroma 0.190 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.019 away. White text reads best on it, at 5.74:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.190) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.65:1 |
| White text | 5.74:1 |
Values
| HEX | #5755D4 |
| RGB | rgb(87, 85, 212) |
| HSL | hsl(241, 60%, 58%) |
| OKLCH | oklch(52.5% 0.19 278.3) |
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 #5755D4 | 5.74:1 | AA | Lc -83.6 | Fine for body text |
| Black text on #5755D4 | 3.65:1 | AA large text | Lc 25.8 | Dividers and decoration only |
| #5755D4 text on white | 5.74:1 | AA | Lc 78.3 | Fine for body text |
| #5755D4 text on black | 3.65:1 | AA large text | Lc -23.5 | 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
#E6E9FB
oklch(93.7% 0.024 278.4)
-
Step 200
200
#D1D7F9
oklch(88.5% 0.047 277.5)
-
Step 300
300
#B3BCF8
oklch(80.9% 0.085 277.7)
-
Step 400
400
#8E96F4
oklch(70.6% 0.137 278.6)
-
Step 500
500
#7479F0
oklch(63% 0.175 278.3)
-
Step 600
600 (this color)
#5755D4
oklch(52.5% 0.19 278.3)
-
Step 700
700
#4F4DC1
oklch(49.1% 0.176 278.4)
-
Step 800
800
#40409C
oklch(42.6% 0.146 278.2)
-
Step 900
900
#36387C
oklch(37.8% 0.113 278.3)
-
Step 950
950
#1F2149
oklch(27% 0.073 278.2)
#5755D4 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) | #006BD8 | 0.074 |
| Deuteranopia (no green cones) | #0061D1 | 0.068 |
| Tritanopia (no blue cones) | #00748C | 0.164 |
| Achromatopsia (no color) | #666666 | 0.190 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5755D4
#5755D4
oklch(52.5% 0.19 278.3)
- #7B6A00
#7B6A00
oklch(52.5% 0.108 98.1)
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 #5755D4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.019
- Iris #6258C4 ΔE 0.031
- Slate Blue #6A5ACD ΔE 0.035
- Dark Periwinkle #665FD1 ΔE 0.035
- Light Indigo #6D5ACF ΔE 0.038
- Bluey Purple #6241C7 ΔE 0.048
- Neon Blue #4361EE ΔE 0.051
- Royal Blue #4169E1 ΔE 0.052
Use #5755D4 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.