#213647
Closest named color: Gunmetal (#293241). oklch(32.3% 0.041 243.9), rgb(33, 54, 71).
Aa
White text reads best on this color (12.47:1).
About this color
#213647 is a dark, muted blue. In OKLCH its lightness is 32%, its chroma 0.041 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.017 away. White text reads best on it, at 12.47:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | muted (0.041) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.68:1 |
| White text | 12.47:1 |
Values
| HEX | #213647 |
| RGB | rgb(33, 54, 71) |
| HSL | hsl(207, 37%, 20%) |
| OKLCH | oklch(32.3% 0.041 243.9) |
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 #213647 | 12.47:1 | AAA | Lc -101.7 | Preferred for body text |
| Black text on #213647 | 1.68:1 | Fails | Lc 0.0 | Not readable |
| #213647 text on white | 12.47:1 | AAA | Lc 98.3 | Preferred for body text |
| #213647 text on black | 1.68:1 | 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
#E2EBF3
oklch(93.6% 0.015 244.7)
-
Step 200
200
#CBDCEA
oklch(88.6% 0.027 242.8)
-
Step 300
300
#A7C5DE
oklch(81% 0.048 243.5)
-
Step 400
400
#77A6CD
oklch(70.6% 0.076 244.2)
-
Step 500
500
#5190C1
oklch(63.2% 0.099 243.7)
-
Step 600
600
#3379AD
oklch(55.6% 0.107 244)
-
Step 700
700
#256695
oklch(49.2% 0.1 244)
-
Step 800
800
#215379
oklch(42.7% 0.083 244.6)
-
Step 900
900
#204561
oklch(37.7% 0.064 243.6)
-
Step 950
950 (this color)
#213647
oklch(32.3% 0.041 243.9)
#213647 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) | #2F3648 | 0.020 |
| Deuteranopia (no green cones) | #2A3247 | 0.017 |
| Tritanopia (no blue cones) | #103A3C | 0.033 |
| Achromatopsia (no color) | #343434 | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #213647
#213647
oklch(32.3% 0.041 243.9)
- #422F1D
#422F1D
oklch(32.2% 0.04 64.1)
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 #213647, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.017
- Dark Blue Grey #1F3B4D ΔE 0.017
- Midnight Green #073B4C ΔE 0.024
- Prussian Blue #1D3557 ΔE 0.030
- Space Cadet #2B2D42 ΔE 0.030
- Onyx #343A40 ΔE 0.035
- Charcoal #264653 ΔE 0.054
- Oxford Blue #1B263B ΔE 0.056
Use #213647 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.