#2B3041
Closest named color: Gunmetal (#293241). oklch(31.2% 0.031 271.8), rgb(43, 48, 65).
Aa
White text reads best on this color (13.11:1).
About this color
#2B3041 is a dark, muted blue. In OKLCH its lightness is 31%, its chroma 0.031 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.007 away. White text reads best on it, at 13.11:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | muted (0.031) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.60:1 |
| White text | 13.11:1 |
Values
| HEX | #2B3041 |
| RGB | rgb(43, 48, 65) |
| HSL | hsl(226, 20%, 21%) |
| OKLCH | oklch(31.2% 0.031 271.8) |
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 #2B3041 | 13.11:1 | AAA | Lc -102.6 | Preferred for body text |
| Black text on #2B3041 | 1.60:1 | Fails | Lc 0.0 | Not readable |
| #2B3041 text on white | 13.11:1 | AAA | Lc 99.4 | Preferred for body text |
| #2B3041 text on black | 1.60:1 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7EAF1
oklch(93.7% 0.01 267.4)
-
Step 200
200
#D4D9E7
oklch(88.6% 0.02 270.2)
-
Step 300
300
#B8C0D9
oklch(81% 0.036 271.5)
-
Step 400
400
#939FC6
oklch(70.7% 0.059 271.5)
-
Step 500
500
#7987B8
oklch(63.1% 0.076 271.8)
-
Step 600
600
#6270A4
oklch(55.5% 0.083 272)
-
Step 700
700
#515E8D
oklch(49.2% 0.077 271.5)
-
Step 800
800
#424D72
oklch(42.7% 0.063 270.9)
-
Step 900
900
#38405C
oklch(37.7% 0.049 271.6)
-
Step 950
950 (this color)
#2B3041
oklch(31.2% 0.031 271.8)
#2B3041 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) | #2B3142 | 0.003 |
| Deuteranopia (no green cones) | #293041 | 0.003 |
| Tritanopia (no blue cones) | #253336 | 0.027 |
| Achromatopsia (no color) | #303030 | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B3041
#2B3041
oklch(31.2% 0.031 271.8)
- #37301E
#37301E
oklch(31.1% 0.031 89.2)
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 #2B3041, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.007
- Space Cadet #2B2D42 ΔE 0.011
- Dark Blue Grey #1F3B4D ΔE 0.038
- Onyx #343A40 ΔE 0.039
- Prussian Blue #1D3557 ΔE 0.041
- Oxford Blue #1B263B ΔE 0.045
- Midnight Green #073B4C ΔE 0.047
- Dark #1B2431 ΔE 0.055
Use #2B3041 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.