#3D68A3
Closest named color: French Blue (#436BAD). oklch(51.4% 0.106 256.7), rgb(61, 104, 163).
Aa
White text reads best on this color (5.66:1).
About this color
#3D68A3 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 51%, its chroma 0.106 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.019 away. White text reads best on it, at 5.66:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.70:1 |
| White text | 5.66:1 |
Values
| HEX | #3D68A3 |
| RGB | rgb(61, 104, 163) |
| HSL | hsl(215, 46%, 44%) |
| OKLCH | oklch(51.4% 0.106 256.7) |
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 #3D68A3 | 5.66:1 | AA | Lc -83.4 | Fine for body text |
| Black text on #3D68A3 | 3.70:1 | AA large text | Lc 25.9 | Dividers and decoration only |
| #3D68A3 text on white | 5.66:1 | AA | Lc 78.1 | Fine for body text |
| #3D68A3 text on black | 3.70:1 | AA large text | Lc -23.6 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CDDAEC
oklch(88.4% 0.029 256.5)
-
Step 300
300
#ACC2E2
oklch(80.8% 0.051 257.7)
-
Step 400
400
#80A3D4
oklch(70.8% 0.082 256.9)
-
Step 500
500
#5F8BC8
oklch(63.1% 0.105 256.7)
-
Step 600
600
#4574B5
oklch(55.6% 0.114 256.8)
-
Step 700
700 (this color)
#3D68A3
oklch(51.4% 0.106 256.7)
-
Step 800
800
#2E507E
oklch(42.8% 0.087 256.4)
-
Step 900
900
#294265
oklch(37.6% 0.068 257)
-
Step 950
950
#18273B
oklch(27% 0.043 255.9)
#3D68A3 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) | #4F6CA5 | 0.025 |
| Deuteranopia (no green cones) | #4163A2 | 0.014 |
| Tritanopia (no blue cones) | #00757E | 0.087 |
| Achromatopsia (no color) | #676767 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D68A3
#3D68A3
oklch(51.4% 0.106 256.7)
- #895E06
#895E06
oklch(51.5% 0.106 77)
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 #3D68A3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.019
- Muted Blue #3B719F ΔE 0.028
- Mid Blue #276AB3 ΔE 0.029
- Flat Blue #3C73A8 ΔE 0.031
- Dusky Blue #475F94 ΔE 0.031
- Denim #3B638C ΔE 0.037
- Ocean Blue #03719C ΔE 0.042
- Denim Blue #3B5B92 ΔE 0.043
Use #3D68A3 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.