#3E55B5
Closest named color: Iris (#6258C4). oklch(48.6% 0.154 269.7), rgb(62, 85, 181).
Aa
White text reads best on this color (6.62:1).
About this color
#3E55B5 is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.154 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.057 away. White text reads best on it, at 6.62:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.154) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.17:1 |
| White text | 6.62:1 |
Values
| HEX | #3E55B5 |
| RGB | rgb(62, 85, 181) |
| HSL | hsl(228, 49%, 48%) |
| OKLCH | oklch(48.6% 0.154 269.7) |
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 #3E55B5 | 6.62:1 | AA | Lc -87.5 | Fine for body text |
| Black text on #3E55B5 | 3.17:1 | AA large text | Lc 21.6 | Dividers and decoration only |
| #3E55B5 text on white | 6.62:1 | AA | Lc 82.4 | Fine for body text |
| #3E55B5 text on black | 3.17:1 | AA large text | Lc -19.5 | 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 700.
-
Step 50
50
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4EAF9
oklch(93.7% 0.021 268.4)
-
Step 200
200
#CED9F5
oklch(88.6% 0.04 268.5)
-
Step 300
300
#ADBFF2
oklch(80.9% 0.075 269.5)
-
Step 400
400
#839CEB
oklch(70.6% 0.12 269.8)
-
Step 500
500
#6582E5
oklch(63.1% 0.152 269.4)
-
Step 600
600
#4E69D3
oklch(55.6% 0.166 269.6)
-
Step 700
700 (this color)
#3E55B5
oklch(48.6% 0.154 269.7)
-
Step 800
800
#344794
oklch(42.6% 0.128 269.8)
-
Step 900
900
#2D3D76
oklch(37.8% 0.099 269.4)
-
Step 950
950
#1A2445
oklch(27% 0.063 269.2)
#3E55B5 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) | #1662B8 | 0.041 |
| Deuteranopia (no green cones) | #0058B3 | 0.041 |
| Tritanopia (no blue cones) | #006C7D | 0.128 |
| Achromatopsia (no color) | #5D5D5D | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E55B5
#3E55B5
oklch(48.6% 0.154 269.7)
- #755C00
#755C00
oklch(48.6% 0.099 90.2)
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 #3E55B5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.057
- Mid Blue #276AB3 ΔE 0.057
- Denim Blue #3B5B92 ΔE 0.061
- Warm Blue #4B57DB ΔE 0.062
- French Blue #436BAD ΔE 0.064
- Blue Blue #2242C7 ΔE 0.064
- Dusky Blue #475F94 ΔE 0.065
- Blue With A Hint Of Purple #533CC6 ΔE 0.065
Use #3E55B5 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.