#06223A
Closest named color: Oxford Blue (#1B263B). oklch(24.5% 0.057 248.2), rgb(6, 34, 58).
Aa
White text reads best on this color (16.18:1).
About this color
#06223A is a very dark, muted blue. In OKLCH its lightness is 25%, its chroma 0.057 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.030 away. White text reads best on it, at 16.18:1.
| Hue family | Blues |
| Lightness | very dark (25%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.29:1 |
| White text | 16.18:1 |
Values
| HEX | #06223A |
| RGB | rgb(6, 34, 58) |
| HSL | hsl(208, 81%, 13%) |
| OKLCH | oklch(24.5% 0.057 248.2) |
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 #06223A | 16.18:1 | AAA | Lc -105.5 | Preferred for body text |
| Black text on #06223A | 1.29:1 | Fails | Lc 0.0 | Not readable |
| #06223A text on white | 16.18:1 | AAA | Lc 102.9 | Preferred for body text |
| #06223A text on black | 1.29:1 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0EBF7
oklch(93.5% 0.02 250.4)
-
Step 200
200
#C7DCF1
oklch(88.5% 0.037 248.2)
-
Step 300
300
#9FC5EA
oklch(80.9% 0.066 248)
-
Step 400
400
#68A6E0
oklch(70.7% 0.107 248)
-
Step 500
500
#3A8ED8
oklch(63% 0.138 248.5)
-
Step 600
600
#0477C5
oklch(55.6% 0.149 248.1)
-
Step 700
700
#0064A7
oklch(49.1% 0.132 247.9)
-
Step 800
800
#01528A
oklch(42.8% 0.114 247.9)
-
Step 900
900
#11446E
oklch(37.7% 0.089 248.1)
-
Step 950
950 (this color)
#06223A
oklch(24.5% 0.057 248.2)
#06223A 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) | #17233B | 0.020 |
| Deuteranopia (no green cones) | #0F1E3A | 0.015 |
| Tritanopia (no blue cones) | #00282B | 0.041 |
| Achromatopsia (no color) | #212121 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #06223A
#06223A
oklch(24.5% 0.057 248.2)
- #311B00
#311B00
oklch(24.6% 0.054 68.7)
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 #06223A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.030
- Dark #1B2431 ΔE 0.032
- Rich Black #0D1B2A ΔE 0.035
- Jet #212529 ΔE 0.050
- Navy Blue #001146 ΔE 0.061
- Space Cadet #2B2D42 ΔE 0.067
- Gunmetal #293241 ΔE 0.075
- Marine #042E60 ΔE 0.076
Use #06223A 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.