#212943
Closest named color: Oxford Blue (#1B263B). oklch(28.7% 0.049 270.1), rgb(33, 41, 67).
Aa
White text reads best on this color (14.35:1).
About this color
#212943 is a dark, muted blue. In OKLCH its lightness is 29%, its chroma 0.049 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.020 away. White text reads best on it, at 14.35:1.
| Hue family | Blues |
| Lightness | dark (29%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.46:1 |
| White text | 14.35:1 |
Values
| HEX | #212943 |
| RGB | rgb(33, 41, 67) |
| HSL | hsl(226, 34%, 20%) |
| OKLCH | oklch(28.7% 0.049 270.1) |
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 #212943 | 14.35:1 | AAA | Lc -104.0 | Preferred for body text |
| Black text on #212943 | 1.46:1 | Fails | Lc 0.0 | Not readable |
| #212943 text on white | 14.35:1 | AAA | Lc 101.1 | Preferred for body text |
| #212943 text on black | 1.46:1 | 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
#E5EAF6
oklch(93.7% 0.017 267.8)
-
Step 200
200
#D1D9EF
oklch(88.6% 0.031 269.8)
-
Step 300
300
#B2C0E7
oklch(81% 0.057 269.6)
-
Step 400
400
#8A9EDB
oklch(70.7% 0.093 270)
-
Step 500
500
#6E85D2
oklch(63.2% 0.119 270.1)
-
Step 600
600
#566DBF
oklch(55.6% 0.13 270)
-
Step 700
700
#475BA4
oklch(49.2% 0.119 270)
-
Step 800
800
#3A4A85
oklch(42.6% 0.1 270.3)
-
Step 900
900
#323F6B
oklch(37.9% 0.077 270)
-
Step 950
950 (this color)
#212943
oklch(28.7% 0.049 270.1)
#212943 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) | #202C44 | 0.010 |
| Deuteranopia (no green cones) | #1C2942 | 0.008 |
| Tritanopia (no blue cones) | #152E32 | 0.044 |
| Achromatopsia (no color) | #2A2A2A | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #212943
#212943
oklch(28.7% 0.049 270.1)
- #342909
#342909
oklch(28.6% 0.049 89.6)
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 #212943, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.020
- Space Cadet #2B2D42 ΔE 0.023
- Gunmetal #293241 ΔE 0.035
- Dark #1B2431 ΔE 0.037
- Prussian Blue #1D3557 ΔE 0.047
- Jet #212529 ΔE 0.047
- Marine #042E60 ΔE 0.057
- Dark Blue Grey #1F3B4D ΔE 0.058
Use #212943 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.