#212A47
Closest named color: Space Cadet (#2B2D42). oklch(29.2% 0.055 269.7), rgb(33, 42, 71).
Aa
White text reads best on this color (14.12:1).
About this color
#212A47 is a dark, muted blue. In OKLCH its lightness is 29%, its chroma 0.055 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.023 away. White text reads best on it, at 14.12:1.
| Hue family | Blues |
| Lightness | dark (29%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.48:1 |
| White text | 14.12:1 |
Values
| HEX | #212A47 |
| RGB | rgb(33, 42, 71) |
| HSL | hsl(226, 37%, 20%) |
| OKLCH | oklch(29.2% 0.055 269.7) |
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 #212A47 | 14.12:1 | AAA | Lc -103.7 | Preferred for body text |
| Black text on #212A47 | 1.48:1 | Fails | Lc 0.0 | Not readable |
| #212A47 text on white | 14.12:1 | AAA | Lc 100.7 | Preferred for body text |
| #212A47 text on black | 1.48:1 | 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
#E5EAF7
oklch(93.7% 0.018 269.1)
-
Step 200
200
#D0D9F2
oklch(88.6% 0.036 269.9)
-
Step 300
300
#B0BFEB
oklch(80.8% 0.065 270.2)
-
Step 400
400
#879DE2
oklch(70.6% 0.104 270.1)
-
Step 500
500
#6A84D9
oklch(63.1% 0.132 269.5)
-
Step 600
600
#536CC7
oklch(55.7% 0.144 269.7)
-
Step 700
700
#4359AC
oklch(49% 0.135 269.7)
-
Step 800
800
#37498B
oklch(42.6% 0.111 269.7)
-
Step 900
900
#303E6F
oklch(37.7% 0.086 269.9)
-
Step 950
950 (this color)
#212A47
oklch(29.2% 0.055 269.7)
#212A47 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) | #1F2D48 | 0.010 |
| Deuteranopia (no green cones) | #1B2A46 | 0.009 |
| Tritanopia (no blue cones) | #123035 | 0.048 |
| Achromatopsia (no color) | #2B2B2B | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #212A47
#212A47
oklch(29.2% 0.055 269.7)
- #362A05
#362A05
oklch(29.1% 0.054 90.1)
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 #212A47, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.023
- Oxford Blue #1B263B ΔE 0.026
- Gunmetal #293241 ΔE 0.035
- Prussian Blue #1D3557 ΔE 0.040
- Dark #1B2431 ΔE 0.044
- Marine #042E60 ΔE 0.050
- Jet #212529 ΔE 0.055
- Dark Blue Grey #1F3B4D ΔE 0.055
Use #212A47 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.