#40658F
Closest named color: Denim (#3B638C). oklch(49.8% 0.08 252.5), rgb(64, 101, 143).
Aa
White text reads best on this color (6.04:1).
About this color
#40658F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.080 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.010 away. White text reads best on it, at 6.04:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.47:1 |
| White text | 6.04:1 |
Values
| HEX | #40658F |
| RGB | rgb(64, 101, 143) |
| HSL | hsl(212, 38%, 41%) |
| OKLCH | oklch(49.8% 0.08 252.5) |
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 #40658F | 6.04:1 | AA | Lc -85.3 | Fine for body text |
| Black text on #40658F | 3.47:1 | AA large text | Lc 24.0 | Dividers and decoration only |
| #40658F text on white | 6.04:1 | AA | Lc 80.1 | Fine for body text |
| #40658F text on black | 3.47:1 | AA large text | Lc -21.8 | 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
#CFDAE7
oklch(88.4% 0.022 252.5)
-
Step 300
300
#AFC3DA
oklch(80.9% 0.039 252)
-
Step 400
400
#85A3C7
oklch(70.6% 0.063 253.3)
-
Step 500
500
#668DB8
oklch(63.2% 0.078 251.5)
-
Step 600
600
#4D76A4
oklch(55.6% 0.086 252.2)
-
Step 700
700 (this color)
#40658F
oklch(49.8% 0.08 252.5)
-
Step 800
800
#345172
oklch(42.7% 0.065 252.5)
-
Step 900
900
#2D435C
oklch(37.6% 0.051 252.3)
-
Step 950
950
#1B2736
oklch(26.9% 0.033 254.4)
#40658F 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) | #546791 | 0.026 |
| Deuteranopia (no green cones) | #4A5F8E | 0.020 |
| Tritanopia (no blue cones) | #106F74 | 0.070 |
| Achromatopsia (no color) | #636363 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40658F
#40658F
oklch(49.8% 0.08 252.5)
- #7E5B2A
#7E5B2A
oklch(49.8% 0.08 73.3)
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 #40658F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.010
- Dusky Blue #475F94 ΔE 0.022
- Denim Blue #3B5B92 ΔE 0.032
- Peacock Blue #016795 ΔE 0.038
- Muted Blue #3B719F ΔE 0.038
- Light Navy Blue #2E5A88 ΔE 0.041
- YInMn Blue #415A77 ΔE 0.045
- Ocean Blue #03719C ΔE 0.045
Use #40658F 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.