#1C223E
Closest named color: Oxford Blue (#1B263B). oklch(26.1% 0.053 273.1), rgb(28, 34, 62).
Aa
White text reads best on this color (15.58:1).
About this color
#1C223E is a dark, muted blue. In OKLCH its lightness is 26%, its chroma 0.053 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.016 away. White text reads best on it, at 15.58:1.
| Hue family | Blues |
| Lightness | dark (26%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.34:1 |
| White text | 15.58:1 |
Values
| HEX | #1C223E |
| RGB | rgb(28, 34, 62) |
| HSL | hsl(229, 38%, 18%) |
| OKLCH | oklch(26.1% 0.053 273.1) |
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 #1C223E | 15.58:1 | AAA | Lc -105.1 | Preferred for body text |
| Black text on #1C223E | 1.34:1 | Fails | Lc 0.0 | Not readable |
| #1C223E text on white | 15.58:1 | AAA | Lc 102.5 | Preferred for body text |
| #1C223E text on black | 1.34:1 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E6E9F6
oklch(93.6% 0.018 275.6)
-
Step 200
200
#D1D8F1
oklch(88.5% 0.035 273.2)
-
Step 300
300
#B3BFEA
oklch(81% 0.062 272.7)
-
Step 400
400
#8C9CE0
oklch(70.7% 0.101 273.4)
-
Step 500
500
#7082D7
oklch(63% 0.129 273.1)
-
Step 600
600
#596AC4
oklch(55.5% 0.14 273)
-
Step 700
700
#4A58AA
oklch(49.1% 0.131 273.3)
-
Step 800
800
#3C4889
oklch(42.6% 0.108 273.1)
-
Step 900
900
#333D6E
oklch(37.7% 0.085 273)
-
Step 950
950 (this color)
#1C223E
oklch(26.1% 0.053 273.1)
#1C223E 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) | #17253F | 0.011 |
| Deuteranopia (no green cones) | #14223D | 0.012 |
| Tritanopia (no blue cones) | #0F282D | 0.047 |
| Achromatopsia (no color) | #242424 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C223E
#1C223E
oklch(26.1% 0.053 273.1)
- #2D2300
#2D2300
oklch(26% 0.053 92.9)
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 #1C223E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.016
- Dark #1B2431 ΔE 0.028
- Jet #212529 ΔE 0.045
- Space Cadet #2B2D42 ΔE 0.046
- Rich Black #0D1B2A ΔE 0.050
- Gunmetal #293241 ΔE 0.059
- Marine #042E60 ΔE 0.068
- Prussian Blue #1D3557 ΔE 0.070
Use #1C223E 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.