#40628B
Closest named color: Denim (#3B638C). oklch(48.9% 0.077 253.8), rgb(64, 98, 139).
Aa
White text reads best on this color (6.29:1).
About this color
#40628B is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.077 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.006 away. White text reads best on it, at 6.29:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.33:1 |
| White text | 6.29:1 |
Values
| HEX | #40628B |
| RGB | rgb(64, 98, 139) |
| HSL | hsl(213, 37%, 40%) |
| OKLCH | oklch(48.9% 0.077 253.8) |
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 #40628B | 6.29:1 | AA | Lc -86.3 | Fine for body text |
| Black text on #40628B | 3.33:1 | AA large text | Lc 22.8 | Dividers and decoration only |
| #40628B text on white | 6.29:1 | AA | Lc 81.2 | Fine for body text |
| #40628B text on black | 3.33:1 | AA large text | Lc -20.6 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EAF1
oklch(93.5% 0.011 256.7)
-
Step 200
200
#D0DAE7
oklch(88.5% 0.021 254.9)
-
Step 300
300
#B0C2D9
oklch(80.8% 0.038 254.6)
-
Step 400
400
#87A3C6
oklch(70.7% 0.06 254.2)
-
Step 500
500
#698CB7
oklch(63.1% 0.076 254)
-
Step 600
600
#5076A3
oklch(55.7% 0.083 253.3)
-
Step 700
700 (this color)
#40628B
oklch(48.9% 0.077 253.8)
-
Step 800
800
#365171
oklch(42.8% 0.063 253.3)
-
Step 900
900
#2F435C
oklch(37.7% 0.05 254.4)
-
Step 950
950
#1C2736
oklch(27% 0.032 256.3)
#40628B 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) | #52648D | 0.024 |
| Deuteranopia (no green cones) | #485D8A | 0.016 |
| Tritanopia (no blue cones) | #176B70 | 0.068 |
| Achromatopsia (no color) | #606060 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40628B
#40628B
oklch(48.9% 0.077 253.8)
- #7A592A
#7A592A
oklch(48.9% 0.077 73.9)
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 #40628B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.006
- Dusky Blue #475F94 ΔE 0.021
- Denim Blue #3B5B92 ΔE 0.027
- Light Navy Blue #2E5A88 ΔE 0.033
- YInMn Blue #415A77 ΔE 0.035
- Peacock Blue #016795 ΔE 0.039
- Dusk #4E5481 ΔE 0.042
- Dusty Grape #545775 ΔE 0.046
Use #40628B 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.