#42618A
Closest named color: Denim (#3B638C). oklch(48.7% 0.076 255.7), rgb(66, 97, 138).
Aa
White text reads best on this color (6.34:1).
About this color
#42618A is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.076 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.009 away. White text reads best on it, at 6.34:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.30:1 |
| White text | 6.34:1 |
Values
| HEX | #42618A |
| RGB | rgb(66, 97, 138) |
| HSL | hsl(214, 35%, 40%) |
| OKLCH | oklch(48.7% 0.076 255.7) |
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 #42618A | 6.34:1 | AA | Lc -86.6 | Fine for body text |
| Black text on #42618A | 3.30:1 | AA large text | Lc 22.6 | Dividers and decoration only |
| #42618A text on white | 6.34:1 | AA | Lc 81.5 | Fine for body text |
| #42618A text on black | 3.30:1 | AA large text | Lc -20.4 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EAF1
oklch(93.5% 0.011 256.7)
-
Step 200
200
#D1DAE7
oklch(88.5% 0.02 257.5)
-
Step 300
300
#B1C2D9
oklch(80.8% 0.038 256)
-
Step 400
400
#89A3C5
oklch(70.8% 0.058 255.3)
-
Step 500
500
#6B8CB7
oklch(63.2% 0.075 255.3)
-
Step 600
600
#5375A3
oklch(55.6% 0.082 256.2)
-
Step 700
700 (this color)
#42618A
oklch(48.7% 0.076 255.7)
-
Step 800
800
#375071
oklch(42.6% 0.063 255.7)
-
Step 900
900
#30435B
oklch(37.8% 0.048 254.6)
-
Step 950
950
#1C2736
oklch(27% 0.032 256.3)
#42618A 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) | #51638C | 0.021 |
| Deuteranopia (no green cones) | #485C89 | 0.015 |
| Tritanopia (no blue cones) | #1F6A6F | 0.067 |
| Achromatopsia (no color) | #5F5F5F | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42618A
#42618A
oklch(48.7% 0.076 255.7)
- #78592A
#78592A
oklch(48.6% 0.076 75.7)
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 #42618A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.009
- Dusky Blue #475F94 ΔE 0.020
- Denim Blue #3B5B92 ΔE 0.026
- Light Navy Blue #2E5A88 ΔE 0.032
- YInMn Blue #415A77 ΔE 0.033
- Dusk #4E5481 ΔE 0.038
- Peacock Blue #016795 ΔE 0.042
- Dusty Grape #545775 ΔE 0.043
Use #42618A 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.