#212F41
Closest named color: Space Cadet (#2B2D42). oklch(30.1% 0.038 255), rgb(33, 47, 65).
Aa
White text reads best on this color (13.56:1).
About this color
#212F41 is a dark, muted blue. In OKLCH its lightness is 30%, its chroma 0.038 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.017 away. White text reads best on it, at 13.56:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | muted (0.038) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.54:1 |
| White text | 13.56:1 |
Values
| HEX | #212F41 |
| RGB | rgb(33, 47, 65) |
| HSL | hsl(214, 33%, 19%) |
| OKLCH | oklch(30.1% 0.038 255) |
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 #212F41 | 13.56:1 | AAA | Lc -103.2 | Preferred for body text |
| Black text on #212F41 | 1.54:1 | Fails | Lc 0.0 | Not readable |
| #212F41 text on white | 13.56:1 | AAA | Lc 100.0 | Preferred for body text |
| #212F41 text on black | 1.54:1 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EAF3
oklch(93.5% 0.014 258.3)
-
Step 200
200
#CEDAEA
oklch(88.4% 0.026 255.6)
-
Step 300
300
#AEC3DE
oklch(81% 0.045 254.8)
-
Step 400
400
#82A3CD
oklch(70.6% 0.072 254.7)
-
Step 500
500
#638CC0
oklch(63.1% 0.091 254.8)
-
Step 600
600
#4975AD
oklch(55.6% 0.1 255.1)
-
Step 700
700
#3A6294
oklch(49% 0.093 254.8)
-
Step 800
800
#315078
oklch(42.6% 0.076 255.4)
-
Step 900
900
#2B4361
oklch(37.8% 0.06 254.6)
-
Step 950
950 (this color)
#212F41
oklch(30.1% 0.038 255)
#212F41 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) | #283042 | 0.012 |
| Deuteranopia (no green cones) | #242D41 | 0.008 |
| Tritanopia (no blue cones) | #153335 | 0.034 |
| Achromatopsia (no color) | #2E2E2E | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #212F41
#212F41
oklch(30.1% 0.038 255)
- #392B18
#392B18
oklch(30% 0.037 74.1)
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 #212F41, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.017
- Gunmetal #293241 ΔE 0.017
- Oxford Blue #1B263B ΔE 0.033
- Prussian Blue #1D3557 ΔE 0.040
- Dark Blue Grey #1F3B4D ΔE 0.040
- Midnight Green #073B4C ΔE 0.042
- Dark #1B2431 ΔE 0.044
- Jet #212529 ΔE 0.048
Use #212F41 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.