#20283F
Closest named color: Oxford Blue (#1B263B). oklch(28.1% 0.044 268.8), rgb(32, 40, 63).
Aa
White text reads best on this color (14.61:1).
About this color
#20283F is a dark, muted blue. In OKLCH its lightness is 28%, its chroma 0.044 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.013 away. White text reads best on it, at 14.61:1.
| Hue family | Blues |
| Lightness | dark (28%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.43:1 |
| White text | 14.61:1 |
Values
| HEX | #20283F |
| RGB | rgb(32, 40, 63) |
| HSL | hsl(225, 33%, 19%) |
| OKLCH | oklch(28.1% 0.044 268.8) |
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 #20283F | 14.61:1 | AAA | Lc -104.3 | Preferred for body text |
| Black text on #20283F | 1.43:1 | Fails | Lc 0.0 | Not readable |
| #20283F text on white | 14.61:1 | AAA | Lc 101.4 | Preferred for body text |
| #20283F text on black | 1.43:1 | Fails | Lc 0.0 | Not readable |
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 950.
-
Step 50
50
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF4
oklch(93.6% 0.015 264.5)
-
Step 200
200
#D1D9ED
oklch(88.5% 0.029 268.3)
-
Step 300
300
#B3C0E3
oklch(80.9% 0.052 269.2)
-
Step 400
400
#8B9FD5
oklch(70.7% 0.083 268.6)
-
Step 500
500
#6F86CA
oklch(63.1% 0.106 269)
-
Step 600
600
#576FB7
oklch(55.6% 0.116 268.5)
-
Step 700
700
#475C9E
oklch(49% 0.109 268.8)
-
Step 800
800
#3B4C80
oklch(42.8% 0.089 268.8)
-
Step 900
900
#323F67
oklch(37.6% 0.071 269.2)
-
Step 950
950 (this color)
#20283F
oklch(28.1% 0.044 268.8)
#20283F 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) | #202A40 | 0.007 |
| Deuteranopia (no green cones) | #1D273E | 0.006 |
| Tritanopia (no blue cones) | #152D30 | 0.041 |
| Achromatopsia (no color) | #292929 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #20283F
#20283F
oklch(28.1% 0.044 268.8)
- #32280D
#32280D
oklch(28.2% 0.044 88.9)
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 #20283F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.013
- Space Cadet #2B2D42 ΔE 0.026
- Dark #1B2431 ΔE 0.029
- Gunmetal #293241 ΔE 0.038
- Jet #212529 ΔE 0.040
- Prussian Blue #1D3557 ΔE 0.054
- Dark Blue Grey #1F3B4D ΔE 0.063
- Midnight Green #073B4C ΔE 0.063
Use #20283F 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.