#212439
Closest named color: Oxford Blue (#1B263B). oklch(26.8% 0.039 277.2), rgb(33, 36, 57).
Aa
White text reads best on this color (15.26:1).
About this color
#212439 is a dark, muted blue. In OKLCH its lightness is 27%, its chroma 0.039 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.011 away. White text reads best on it, at 15.26:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.37:1 |
| White text | 15.26:1 |
Values
| HEX | #212439 |
| RGB | rgb(33, 36, 57) |
| HSL | hsl(233, 27%, 18%) |
| OKLCH | oklch(26.8% 0.039 277.2) |
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 #212439 | 15.26:1 | AAA | Lc -104.9 | Preferred for body text |
| Black text on #212439 | 1.37:1 | Fails | Lc 0.0 | Not readable |
| #212439 text on white | 15.26:1 | AAA | Lc 102.1 | Preferred for body text |
| #212439 text on black | 1.37:1 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F3
oklch(93.5% 0.014 277.1)
-
Step 200
200
#D4D8EB
oklch(88.5% 0.026 276.4)
-
Step 300
300
#B8BEDF
oklch(80.8% 0.047 277.2)
-
Step 400
400
#949DCF
oklch(70.7% 0.074 276.4)
-
Step 500
500
#7B84C3
oklch(63.2% 0.095 277.1)
-
Step 600
600
#646DAF
oklch(55.6% 0.103 276.6)
-
Step 700
700
#535A97
oklch(49% 0.098 277.2)
-
Step 800
800
#444A7A
oklch(42.6% 0.08 277)
-
Step 900
900
#393E62
oklch(37.6% 0.062 277)
-
Step 950
950 (this color)
#212439
oklch(26.8% 0.039 277.2)
#212439 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) | #1D263A | 0.009 |
| Deuteranopia (no green cones) | #1C2438 | 0.009 |
| Tritanopia (no blue cones) | #1A282C | 0.034 |
| Achromatopsia (no color) | #252525 | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #212439
#212439
oklch(26.8% 0.039 277.2)
- #2B260E
#2B260E
oklch(26.8% 0.039 97.8)
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 #212439, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.011
- Dark #1B2431 ΔE 0.019
- Jet #212529 ΔE 0.032
- Space Cadet #2B2D42 ΔE 0.037
- Gunmetal #293241 ΔE 0.050
- Rich Black #0D1B2A ΔE 0.053
- Prussian Blue #1D3557 ΔE 0.069
- Marine #042E60 ΔE 0.075
Use #212439 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.