#3D6397
Closest named color: Dusky Blue (#475F94). oklch(49.6% 0.094 256.6), rgb(61, 99, 151).
Aa
White text reads best on this color (6.12:1).
About this color
#3D6397 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.094 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.015 away. White text reads best on it, at 6.12:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.43:1 |
| White text | 6.12:1 |
Values
| HEX | #3D6397 |
| RGB | rgb(61, 99, 151) |
| HSL | hsl(215, 42%, 42%) |
| OKLCH | oklch(49.6% 0.094 256.6) |
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 #3D6397 | 6.12:1 | AA | Lc -85.6 | Fine for body text |
| Black text on #3D6397 | 3.43:1 | AA large text | Lc 23.7 | Dividers and decoration only |
| #3D6397 text on white | 6.12:1 | AA | Lc 80.4 | Fine for body text |
| #3D6397 text on black | 3.43:1 | AA large text | Lc -21.4 | 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 700.
-
Step 50
50
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF3
oklch(93.5% 0.014 258.3)
-
Step 200
200
#CFDAEA
oklch(88.5% 0.025 257.6)
-
Step 300
300
#AEC2DE
oklch(80.8% 0.045 256.8)
-
Step 400
400
#83A3CE
oklch(70.7% 0.073 255.9)
-
Step 500
500
#648BC2
oklch(63.1% 0.094 257)
-
Step 600
600
#4B75AE
oklch(55.7% 0.101 256.4)
-
Step 700
700 (this color)
#3D6397
oklch(49.6% 0.094 256.6)
-
Step 800
800
#325079
oklch(42.8% 0.077 256.5)
-
Step 900
900
#2C4262
oklch(37.6% 0.062 257.7)
-
Step 950
950
#1A2739
oklch(27% 0.038 256.7)
#3D6397 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) | #4D6699 | 0.022 |
| Deuteranopia (no green cones) | #425E96 | 0.014 |
| Tritanopia (no blue cones) | #006F76 | 0.082 |
| Achromatopsia (no color) | #626262 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D6397
#3D6397
oklch(49.6% 0.094 256.6)
- #805A16
#805A16
oklch(49.6% 0.094 76.9)
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 #3D6397, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.015
- Denim #3B638C ΔE 0.018
- Denim Blue #3B5B92 ΔE 0.024
- Peacock Blue #016795 ΔE 0.036
- Light Navy Blue #2E5A88 ΔE 0.039
- French Blue #436BAD ΔE 0.040
- Muted Blue #3B719F ΔE 0.040
- Mid Blue #276AB3 ΔE 0.046
Use #3D6397 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.