#213343
Closest named color: Gunmetal (#293241). oklch(31.3% 0.037 246.2), rgb(33, 51, 67).
Aa
White text reads best on this color (12.96:1).
About this color
#213343 is a dark, muted blue. In OKLCH its lightness is 31%, its chroma 0.037 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.011 away. White text reads best on it, at 12.96:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | muted (0.037) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.61:1 |
| White text | 12.96:1 |
Values
| HEX | #213343 |
| RGB | rgb(33, 51, 67) |
| HSL | hsl(208, 34%, 20%) |
| OKLCH | oklch(31.3% 0.037 246.2) |
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 #213343 | 12.96:1 | AAA | Lc -102.4 | Preferred for body text |
| Black text on #213343 | 1.61:1 | Fails | Lc 0.0 | Not readable |
| #213343 text on white | 12.96:1 | AAA | Lc 99.1 | Preferred for body text |
| #213343 text on black | 1.61:1 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CDDBE9
oklch(88.5% 0.025 248.1)
-
Step 300
300
#AAC4DC
oklch(80.9% 0.044 246.2)
-
Step 400
400
#7CA5CB
oklch(70.6% 0.072 246.9)
-
Step 500
500
#5A8FBD
oklch(63.2% 0.09 246)
-
Step 600
600
#3E78A9
oklch(55.5% 0.098 246.3)
-
Step 700
700
#306591
oklch(49.1% 0.091 246.1)
-
Step 800
800
#285276
oklch(42.6% 0.076 246.7)
-
Step 900
900
#26445F
oklch(37.6% 0.059 247.2)
-
Step 950
950 (this color)
#213343
oklch(31.3% 0.037 246.2)
#213343 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) | #2C3344 | 0.016 |
| Deuteranopia (no green cones) | #283043 | 0.013 |
| Tritanopia (no blue cones) | #133738 | 0.032 |
| Achromatopsia (no color) | #313131 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #213343
#213343
oklch(31.3% 0.037 246.2)
- #3E2D1C
#3E2D1C
oklch(31.2% 0.037 65.7)
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 #213343, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.011
- Space Cadet #2B2D42 ΔE 0.023
- Dark Blue Grey #1F3B4D ΔE 0.028
- Midnight Green #073B4C ΔE 0.032
- Prussian Blue #1D3557 ΔE 0.035
- Onyx #343A40 ΔE 0.040
- Oxford Blue #1B263B ΔE 0.046
- Dark #1B2431 ΔE 0.056
Use #213343 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.