#22283A
Closest named color: Oxford Blue (#1B263B). oklch(28% 0.034 269.9), rgb(34, 40, 58).
Aa
White text reads best on this color (14.65:1).
About this color
#22283A is a dark, muted blue. In OKLCH its lightness is 28%, its chroma 0.034 and its hue 270°. 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 14.65:1.
| Hue family | Blues |
| Lightness | dark (28%) |
| Chroma | muted (0.034) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.43:1 |
| White text | 14.65:1 |
Values
| HEX | #22283A |
| RGB | rgb(34, 40, 58) |
| HSL | hsl(225, 26%, 18%) |
| OKLCH | oklch(28% 0.034 269.9) |
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 #22283A | 14.65:1 | AAA | Lc -104.3 | Preferred for body text |
| Black text on #22283A | 1.43:1 | Fails | Lc 0.0 | Not readable |
| #22283A text on white | 14.65:1 | AAA | Lc 101.5 | Preferred for body text |
| #22283A 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7EAF2
oklch(93.7% 0.011 269.5)
-
Step 200
200
#D3D9E9
oklch(88.6% 0.023 269.4)
-
Step 300
300
#B6C0DC
oklch(80.9% 0.041 269.9)
-
Step 400
400
#909FCA
oklch(70.6% 0.065 269.7)
-
Step 500
500
#7687BD
oklch(63.1% 0.084 270.4)
-
Step 600
600
#5E70A9
oklch(55.5% 0.092 269.9)
-
Step 700
700
#4E5E91
oklch(49.2% 0.084 269.9)
-
Step 800
800
#404D75
oklch(42.7% 0.069 269.6)
-
Step 900
900
#36405F
oklch(37.7% 0.055 269.9)
-
Step 950
950 (this color)
#22283A
oklch(28% 0.034 269.9)
#22283A 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) | #222A3B | 0.007 |
| Deuteranopia (no green cones) | #20283A | 0.003 |
| Tritanopia (no blue cones) | #1B2C2E | 0.032 |
| Achromatopsia (no color) | #282828 | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #22283A
#22283A
oklch(28% 0.034 269.9)
- #2F2814
#2F2814
oklch(27.9% 0.034 90.8)
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 #22283A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.014
- Dark #1B2431 ΔE 0.024
- Space Cadet #2B2D42 ΔE 0.026
- Jet #212529 ΔE 0.031
- Gunmetal #293241 ΔE 0.036
- Prussian Blue #1D3557 ΔE 0.059
- Rich Black #0D1B2A ΔE 0.063
- Dark Blue Grey #1F3B4D ΔE 0.064
Use #22283A 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.