#22283C
Closest named color: Oxford Blue (#1B263B). oklch(28.1% 0.038 271), rgb(34, 40, 60).
Aa
White text reads best on this color (14.61:1).
About this color
#22283C is a dark, muted blue. In OKLCH its lightness is 28%, its chroma 0.038 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.014 away. White text reads best on it, at 14.61:1.
| Hue family | Blues |
| Lightness | dark (28%) |
| Chroma | muted (0.038) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.43:1 |
| White text | 14.61:1 |
Values
| HEX | #22283C |
| RGB | rgb(34, 40, 60) |
| HSL | hsl(226, 28%, 18%) |
| OKLCH | oklch(28.1% 0.038 271) |
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 #22283C | 14.61:1 | AAA | Lc -104.3 | Preferred for body text |
| Black text on #22283C | 1.43:1 | Fails | Lc 0.0 | Not readable |
| #22283C text on white | 14.61:1 | AAA | Lc 101.4 | Preferred for body text |
| #22283C 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E6EAF3
oklch(93.7% 0.013 266.7)
-
Step 200
200
#D3D9EA
oklch(88.6% 0.024 270.3)
-
Step 300
300
#B6C0DF
oklch(81% 0.045 271.2)
-
Step 400
400
#909FCE
oklch(70.8% 0.071 270.8)
-
Step 500
500
#7586C2
oklch(63.1% 0.093 271.4)
-
Step 600
600
#5E6FAE
oklch(55.6% 0.1 271.4)
-
Step 700
700
#4D5D96
oklch(49.1% 0.094 270.8)
-
Step 800
800
#3F4C79
oklch(42.7% 0.077 270.7)
-
Step 900
900
#364062
oklch(37.8% 0.06 270.8)
-
Step 950
950 (this color)
#22283C
oklch(28.1% 0.038 271)
#22283C 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) | #212A3D | 0.007 |
| Deuteranopia (no green cones) | #1F283C | 0.005 |
| Tritanopia (no blue cones) | #1A2C2F | 0.034 |
| Achromatopsia (no color) | #292929 | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #22283C
#22283C
oklch(28.1% 0.038 271)
- #302812
#302812
oklch(28% 0.037 89.9)
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 #22283C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.014
- Space Cadet #2B2D42 ΔE 0.025
- Dark #1B2431 ΔE 0.026
- Jet #212529 ΔE 0.035
- Gunmetal #293241 ΔE 0.036
- Prussian Blue #1D3557 ΔE 0.057
- Dark Blue Grey #1F3B4D ΔE 0.063
- Midnight Green #073B4C ΔE 0.064
Use #22283C 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.