#3D519C
Closest named color: Denim Blue (#3B5B92). oklch(45.9% 0.124 269.8), rgb(61, 81, 156).
Aa
White text reads best on this color (7.35:1).
About this color
#3D519C is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.124 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Denim Blue (#3B5B92), ΔE 0.035 away. White text reads best on it, at 7.35:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.124) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 2.85:1 |
| White text | 7.35:1 |
Values
| HEX | #3D519C |
| RGB | rgb(61, 81, 156) |
| HSL | hsl(227, 44%, 43%) |
| OKLCH | oklch(45.9% 0.124 269.8) |
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 #3D519C | 7.35:1 | AAA | Lc -90.2 | Preferred for body text |
| Black text on #3D519C | 2.85:1 | Fails | Lc 18.7 | Dividers and decoration only |
| #3D519C text on white | 7.35:1 | AAA | Lc 85.3 | Fine for body text |
| #3D519C text on black | 2.85:1 | Fails | Lc -16.7 | 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
#CED9F5
oklch(88.6% 0.04 268.5)
-
Step 300
300
#AEBFF0
oklch(80.9% 0.072 269.8)
-
Step 400
400
#849DE9
oklch(70.8% 0.115 269.4)
-
Step 500
500
#6782E2
oklch(63.1% 0.148 269.9)
-
Step 600
600
#4F69D0
oklch(55.5% 0.161 269.8)
-
Step 700
700
#4057B4
oklch(49% 0.15 269.7)
-
Step 800
800 (this color)
#3D519C
oklch(45.9% 0.124 269.8)
-
Step 900
900
#2E3D74
oklch(37.7% 0.096 269.9)
-
Step 950
950
#1B2444
oklch(27% 0.061 270.1)
#3D519C 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) | #2C5A9F | 0.028 |
| Deuteranopia (no green cones) | #1D529A | 0.031 |
| Tritanopia (no blue cones) | #00626F | 0.108 |
| Achromatopsia (no color) | #565656 | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D519C
#3D519C
oklch(45.9% 0.124 269.8)
- #6C5400
#6C5400
oklch(45.8% 0.094 89.5)
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 #3D519C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.035
- Twilight #4E518B ΔE 0.036
- Dusk Blue #26538D ΔE 0.036
- Blueberry #464196 ΔE 0.042
- Dusky Blue #475F94 ΔE 0.047
- Light Navy Blue #2E5A88 ΔE 0.048
- Cobalt #1E488F ΔE 0.049
- Dusk #4E5481 ΔE 0.052
Use #3D519C 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.