#28668D
Closest named color: Denim (#3B638C). oklch(48.8% 0.089 239.9), rgb(40, 102, 141).
Aa
White text reads best on this color (6.22:1).
About this color
#28668D is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.089 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.018 away. White text reads best on it, at 6.22:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.37:1 |
| White text | 6.22:1 |
Values
| HEX | #28668D |
| RGB | rgb(40, 102, 141) |
| HSL | hsl(203, 56%, 35%) |
| OKLCH | oklch(48.8% 0.089 239.9) |
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 #28668D | 6.22:1 | AA | Lc -85.9 | Fine for body text |
| Black text on #28668D | 3.37:1 | AA large text | Lc 23.3 | Dividers and decoration only |
| #28668D text on white | 6.22:1 | AA | Lc 80.8 | Fine for body text |
| #28668D text on black | 3.37:1 | AA large text | Lc -21.1 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF1
oklch(93.6% 0.012 239.9)
-
Step 200
200
#CCDCE8
oklch(88.6% 0.024 240.1)
-
Step 300
300
#A8C5DA
oklch(80.9% 0.043 239.6)
-
Step 400
400
#79A7C7
oklch(70.7% 0.068 239.3)
-
Step 500
500
#5591B9
oklch(63.2% 0.087 239.3)
-
Step 600
600
#377AA5
oklch(55.5% 0.095 239.8)
-
Step 700
700 (this color)
#28668D
oklch(48.8% 0.089 239.9)
-
Step 800
800
#235473
oklch(42.7% 0.074 239.5)
-
Step 900
900
#22455D
oklch(37.6% 0.058 240.6)
-
Step 950
950
#152936
oklch(27% 0.036 238.5)
#28668D 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) | #54668F | 0.047 |
| Deuteranopia (no green cones) | #465C8C | 0.039 |
| Tritanopia (no blue cones) | #007073 | 0.062 |
| Achromatopsia (no color) | #616161 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28668D
#28668D
oklch(48.8% 0.089 239.9)
- #845326
#845326
oklch(48.8% 0.089 60.7)
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 #28668D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.018
- Peacock Blue #016795 ΔE 0.019
- Light Navy Blue #2E5A88 ΔE 0.035
- Ocean Blue #03719C ΔE 0.036
- Denim Blue #3B5B92 ΔE 0.038
- Dusky Blue #475F94 ΔE 0.039
- Sea Blue #047495 ΔE 0.041
- Muted Blue #3B719F ΔE 0.045
Use #28668D 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.