#3D5197
Closest named color: Twilight (#4E518B). oklch(45.5% 0.116 269.4), rgb(61, 81, 151).
Aa
White text reads best on this color (7.44:1).
About this color
#3D5197 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.116 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.030 away. White text reads best on it, at 7.44:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.116) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.82:1 |
| White text | 7.44:1 |
Values
| HEX | #3D5197 |
| RGB | rgb(61, 81, 151) |
| HSL | hsl(227, 42%, 42%) |
| OKLCH | oklch(45.5% 0.116 269.4) |
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 #3D5197 | 7.44:1 | AAA | Lc -90.5 | Preferred for body text |
| Black text on #3D5197 | 2.82:1 | Fails | Lc 18.4 | Dividers and decoration only |
| #3D5197 text on white | 7.44:1 | AAA | Lc 85.7 | Fine for body text |
| #3D5197 text on black | 2.82:1 | Fails | Lc -16.4 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4EAF8
oklch(93.7% 0.02 267.3)
-
Step 200
200
#CFD9F3
oklch(88.6% 0.037 268.9)
-
Step 300
300
#AFBFEE
oklch(80.9% 0.069 270.1)
-
Step 400
400
#859DE5
oklch(70.6% 0.109 269.4)
-
Step 500
500
#6883DD
oklch(63% 0.139 269.5)
-
Step 600
600
#506BCB
oklch(55.6% 0.151 269.2)
-
Step 700
700
#4159B0
oklch(49.2% 0.141 269.1)
-
Step 800
800 (this color)
#3D5197
oklch(45.5% 0.116 269.4)
-
Step 900
900
#2E3E71
oklch(37.7% 0.09 268.7)
-
Step 950
950
#1B2442
oklch(26.9% 0.057 269.6)
#3D5197 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) | #31599A | 0.024 |
| Deuteranopia (no green cones) | #245196 | 0.027 |
| Tritanopia (no blue cones) | #00616C | 0.104 |
| Achromatopsia (no color) | #555555 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D5197
#3D5197
oklch(45.5% 0.116 269.4)
- #6B5300
#6B5300
oklch(45.4% 0.093 89.3)
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 #3D5197, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.030
- Dusk Blue #26538D ΔE 0.031
- Denim Blue #3B5B92 ΔE 0.031
- Light Navy Blue #2E5A88 ΔE 0.042
- Blueberry #464196 ΔE 0.042
- Dusky Blue #475F94 ΔE 0.045
- Dusk #4E5481 ΔE 0.045
- Cobalt #1E488F ΔE 0.047
Use #3D5197 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.