#3E59B8
Closest named color: Mid Blue (#276AB3). oklch(49.6% 0.153 268.4), rgb(62, 89, 184).
Aa
White text reads best on this color (6.31:1).
About this color
#3E59B8 is a medium-dark, vivid blue. In OKLCH its lightness is 50%, its chroma 0.153 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.049 away. White text reads best on it, at 6.31:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.153) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.32:1 |
| White text | 6.31:1 |
Values
| HEX | #3E59B8 |
| RGB | rgb(62, 89, 184) |
| HSL | hsl(227, 50%, 48%) |
| OKLCH | oklch(49.6% 0.153 268.4) |
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 #3E59B8 | 6.31:1 | AA | Lc -86.2 | Fine for body text |
| Black text on #3E59B8 | 3.32:1 | AA large text | Lc 23.0 | Dividers and decoration only |
| #3E59B8 text on white | 6.31:1 | AA | Lc 81.1 | Fine for body text |
| #3E59B8 text on black | 3.32:1 | AA large text | Lc -20.8 | 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
#F2F5FC
oklch(97% 0.01 267.4)
-
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
#ACBFF1
oklch(80.8% 0.074 268.5)
-
Step 400
400
#819DEB
oklch(70.7% 0.119 268.2)
-
Step 500
500
#6383E4
oklch(63.2% 0.15 268.2)
-
Step 600
600
#4B6AD2
oklch(55.6% 0.164 268.2)
-
Step 700
700 (this color)
#3E59B8
oklch(49.6% 0.153 268.4)
-
Step 800
800
#324894
oklch(42.7% 0.128 268.4)
-
Step 900
900
#2C3D76
oklch(37.7% 0.099 268.8)
-
Step 950
950
#1A2445
oklch(27% 0.063 269.2)
#3E59B8 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) | #2066BB | 0.038 |
| Deuteranopia (no green cones) | #005AB6 | 0.040 |
| Tritanopia (no blue cones) | #006F80 | 0.126 |
| Achromatopsia (no color) | #606060 | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E59B8
#3E59B8
oklch(49.6% 0.153 268.4)
- #7A5E00
#7A5E00
oklch(49.6% 0.101 88.3)
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 #3E59B8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.049
- Iris #6258C4 ΔE 0.053
- French Blue #436BAD ΔE 0.056
- Warm Blue #4B57DB ΔE 0.058
- Denim Blue #3B5B92 ΔE 0.063
- Dusky Blue #475F94 ΔE 0.064
- Dark Periwinkle #665FD1 ΔE 0.070
- Slate Blue #6A5ACD ΔE 0.070
Use #3E59B8 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.