#16233F
Closest named color: Oxford Blue (#1B263B). oklch(26% 0.056 264.1), rgb(22, 35, 63).
Aa
White text reads best on this color (15.59:1).
About this color
#16233F is a dark, muted blue. In OKLCH its lightness is 26%, its chroma 0.056 and its hue 264°. 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 15.59:1.
| Hue family | Blues |
| Lightness | dark (26%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.34:1 |
| White text | 15.59:1 |
Values
| HEX | #16233F |
| RGB | rgb(22, 35, 63) |
| HSL | hsl(221, 48%, 17%) |
| OKLCH | oklch(26% 0.056 264.1) |
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 #16233F | 15.59:1 | AAA | Lc -105.1 | Preferred for body text |
| Black text on #16233F | 1.34:1 | Fails | Lc 0.0 | Not readable |
| #16233F text on white | 15.59:1 | AAA | Lc 102.4 | Preferred for body text |
| #16233F 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
#F2F5FC
oklch(97% 0.01 267.4)
-
Step 100
100
#E3EAF7
oklch(93.6% 0.019 263)
-
Step 200
200
#CDD9F2
oklch(88.4% 0.037 265.1)
-
Step 300
300
#ABC1EC
oklch(80.9% 0.066 263.7)
-
Step 400
400
#7FA0E3
oklch(70.8% 0.105 263.8)
-
Step 500
500
#5F86DB
oklch(63% 0.136 264.3)
-
Step 600
600
#466EC8
oklch(55.5% 0.147 264.2)
-
Step 700
700
#385CAD
oklch(49.1% 0.136 264)
-
Step 800
800
#2E4B8C
oklch(42.6% 0.113 264.1)
-
Step 900
900
#293F70
oklch(37.6% 0.089 264.3)
-
Step 950
950 (this color)
#16233F
oklch(26% 0.056 264.1)
#16233F 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) | #172640 | 0.010 |
| Deuteranopia (no green cones) | #12223E | 0.007 |
| Tritanopia (no blue cones) | #00292D | 0.051 |
| Achromatopsia (no color) | #242424 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #16233F
#16233F
oklch(26% 0.056 264.1)
- #302100
#302100
oklch(25.9% 0.053 83.5)
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 #16233F, 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 0.047
- Rich Black #0D1B2A ΔE 0.048
- Space Cadet #2B2D42 ΔE 0.050
- Gunmetal #293241 ΔE 0.061
- Marine #042E60 ΔE 0.065
- Navy Blue #001146 ΔE 0.068
Use #16233F 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.