#3D5188
Closest named color: Twilight (#4E518B). oklch(44.6% 0.094 267.4), rgb(61, 81, 136).
Aa
White text reads best on this color (7.68:1).
About this color
#3D5188 is a dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.094 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.025 away. White text reads best on it, at 7.68:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.73:1 |
| White text | 7.68:1 |
Values
| HEX | #3D5188 |
| RGB | rgb(61, 81, 136) |
| HSL | hsl(224, 38%, 39%) |
| OKLCH | oklch(44.6% 0.094 267.4) |
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 #3D5188 | 7.68:1 | AAA | Lc -91.4 | Preferred for body text |
| Black text on #3D5188 | 2.73:1 | Fails | Lc 17.4 | Dividers and decoration only |
| #3D5188 text on white | 7.68:1 | AAA | Lc 86.6 | Fine for body text |
| #3D5188 text on black | 2.73:1 | Fails | Lc -15.5 | 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 800.
-
Step 50
50
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF5
oklch(93.6% 0.016 266.3)
-
Step 200
200
#D0D9EE
oklch(88.5% 0.031 267.2)
-
Step 300
300
#B1C0E5
oklch(80.9% 0.055 267.8)
-
Step 400
400
#889FD8
oklch(70.7% 0.088 267.2)
-
Step 500
500
#6B86CE
oklch(63% 0.113 267.5)
-
Step 600
600
#546FBB
oklch(55.7% 0.122 267.6)
-
Step 700
700
#445CA1
oklch(49% 0.114 267.6)
-
Step 800
800 (this color)
#3D5188
oklch(44.6% 0.094 267.4)
-
Step 900
900
#304068
oklch(37.8% 0.072 266.5)
-
Step 950
950
#1C253D
oklch(26.9% 0.047 267.6)
#3D5188 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) | #3B578A | 0.017 |
| Deuteranopia (no green cones) | #325087 | 0.014 |
| Tritanopia (no blue cones) | #165D66 | 0.084 |
| Achromatopsia (no color) | #535353 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D5188
#3D5188
oklch(44.6% 0.094 267.4)
- #695000
#695000
oklch(44.5% 0.091 87.8)
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 #3D5188, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.025
- Dusk Blue #26538D ΔE 0.025
- Dusk #4E5481 ΔE 0.029
- Light Navy Blue #2E5A88 ΔE 0.029
- Denim Blue #3B5B92 ΔE 0.030
- Light Navy #155084 ΔE 0.040
- YInMn Blue #415A77 ΔE 0.044
- Dusky Blue #475F94 ΔE 0.046
Use #3D5188 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.