#42619F
Closest named color: Dusky Blue (#475F94). oklch(49.9% 0.106 263), rgb(66, 97, 159).
Aa
White text reads best on this color (6.10:1).
About this color
#42619F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.106 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.018 away. White text reads best on it, at 6.10:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.44:1 |
| White text | 6.10:1 |
Values
| HEX | #42619F |
| RGB | rgb(66, 97, 159) |
| HSL | hsl(220, 41%, 44%) |
| OKLCH | oklch(49.9% 0.106 263) |
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 #42619F | 6.10:1 | AA | Lc -85.5 | Fine for body text |
| Black text on #42619F | 3.44:1 | AA large text | Lc 23.8 | Dividers and decoration only |
| #42619F text on white | 6.10:1 | AA | Lc 80.3 | Fine for body text |
| #42619F text on black | 3.44:1 | AA large text | Lc -21.5 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF4
oklch(93.6% 0.015 264.5)
-
Step 200
200
#CFDAED
oklch(88.6% 0.029 261.5)
-
Step 300
300
#AFC1E3
oklch(80.9% 0.052 263.1)
-
Step 400
400
#86A1D4
oklch(70.8% 0.081 262.8)
-
Step 500
500
#6789C9
oklch(63.2% 0.104 262.4)
-
Step 600
600
#4F71B6
oklch(55.5% 0.115 263.3)
-
Step 700
700 (this color)
#42619F
oklch(49.9% 0.106 263)
-
Step 800
800
#354E7F
oklch(42.8% 0.087 262.8)
-
Step 900
900
#2E4166
oklch(37.7% 0.068 262.8)
-
Step 950
950
#1B263C
oklch(27% 0.044 263.4)
#42619F 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) | #4767A1 | 0.019 |
| Deuteranopia (no green cones) | #3B5E9E | 0.013 |
| Tritanopia (no blue cones) | #006F78 | 0.095 |
| Achromatopsia (no color) | #626262 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42619F
#42619F
oklch(49.9% 0.106 263)
- #7F5C00
#7F5C00
oklch(49.8% 0.102 82.7)
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 #42619F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.018
- Denim Blue #3B5B92 ΔE 0.027
- French Blue #436BAD ΔE 0.033
- Denim #3B638C ΔE 0.034
- Mid Blue #276AB3 ΔE 0.040
- Muted Blue #3B719F ΔE 0.046
- Light Navy Blue #2E5A88 ΔE 0.048
- Peacock Blue #016795 ΔE 0.048
Use #42619F 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.