#3D5FAF
Closest named color: Mid Blue (#276AB3). oklch(50.2% 0.133 264.7), rgb(61, 95, 175).
Aa
White text reads best on this color (6.07:1).
About this color
#3D5FAF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.133 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.032 away. White text reads best on it, at 6.07:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.133) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.45:1 |
| White text | 6.07:1 |
Values
| HEX | #3D5FAF |
| RGB | rgb(61, 95, 175) |
| HSL | hsl(222, 48%, 46%) |
| OKLCH | oklch(50.2% 0.133 264.7) |
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 #3D5FAF | 6.07:1 | AA | Lc -85.3 | Fine for body text |
| Black text on #3D5FAF | 3.45:1 | AA large text | Lc 24.0 | Dividers and decoration only |
| #3D5FAF text on white | 6.07:1 | AA | Lc 80.1 | Fine for body text |
| #3D5FAF text on black | 3.45:1 | AA large text | Lc -21.7 | 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 700.
-
Step 50
50
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E4EAF7
oklch(93.6% 0.019 266)
-
Step 200
200
#CDD9F2
oklch(88.4% 0.037 265.1)
-
Step 300
300
#ACC1EB
oklch(80.9% 0.064 264.1)
-
Step 400
400
#819FE1
oklch(70.6% 0.103 265.1)
-
Step 500
500
#6186D9
oklch(63% 0.132 264.7)
-
Step 600
600
#496EC6
oklch(55.5% 0.143 265)
-
Step 700
700 (this color)
#3D5FAF
oklch(50.2% 0.133 264.7)
-
Step 800
800
#304B8B
oklch(42.6% 0.111 264.9)
-
Step 900
900
#2A3F6F
oklch(37.6% 0.087 264.8)
-
Step 950
950
#192541
oklch(26.9% 0.055 265.3)
#3D5FAF 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) | #3868B2 | 0.024 |
| Deuteranopia (no green cones) | #245DAD | 0.025 |
| Tritanopia (no blue cones) | #00717E | 0.111 |
| Achromatopsia (no color) | #626262 | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D5FAF
#3D5FAF
oklch(50.2% 0.133 264.7)
- #7F5E00
#7F5E00
oklch(50.2% 0.103 84.6)
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 #3D5FAF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.032
- French Blue #436BAD ΔE 0.036
- Dusky Blue #475F94 ΔE 0.044
- Denim Blue #3B5B92 ΔE 0.047
- Flat Blue #3C73A8 ΔE 0.060
- Denim #3B638C ΔE 0.060
- Iris #6258C4 ΔE 0.062
- Muted Blue #3B719F ΔE 0.062
Use #3D5FAF 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.