#2B3049
Closest named color: Space Cadet (#2B2D42). oklch(31.6% 0.045 274.9), rgb(43, 48, 73).
Aa
White text reads best on this color (12.94:1).
About this color
#2B3049 is a dark, muted blue. In OKLCH its lightness is 32%, its chroma 0.045 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.014 away. White text reads best on it, at 12.94:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.62:1 |
| White text | 12.94:1 |
Values
| HEX | #2B3049 |
| RGB | rgb(43, 48, 73) |
| HSL | hsl(230, 26%, 23%) |
| OKLCH | oklch(31.6% 0.045 274.9) |
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 #2B3049 | 12.94:1 | AAA | Lc -102.4 | Preferred for body text |
| Black text on #2B3049 | 1.62:1 | Fails | Lc 0.0 | Not readable |
| #2B3049 text on white | 12.94:1 | AAA | Lc 99.1 | Preferred for body text |
| #2B3049 text on black | 1.62:1 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E6E9F5
oklch(93.5% 0.016 274.8)
-
Step 200
200
#D3D8ED
oklch(88.5% 0.029 275.1)
-
Step 300
300
#B6BFE4
oklch(81% 0.053 274.4)
-
Step 400
400
#909DD6
oklch(70.7% 0.085 274.1)
-
Step 500
500
#7683CC
oklch(63% 0.111 275.1)
-
Step 600
600
#5F6CB8
oklch(55.6% 0.119 274.6)
-
Step 700
700
#4F5A9F
oklch(49.2% 0.111 274.8)
-
Step 800
800
#414A81
oklch(42.8% 0.092 274.9)
-
Step 900
900
#373E67
oklch(37.8% 0.071 275.1)
-
Step 950
950 (this color)
#2B3049
oklch(31.6% 0.045 274.9)
#2B3049 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) | #28334A | 0.010 |
| Deuteranopia (no green cones) | #263048 | 0.008 |
| Tritanopia (no blue cones) | #223539 | 0.041 |
| Achromatopsia (no color) | #313131 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B3049
#2B3049
oklch(31.6% 0.045 274.9)
- #393215
#393215
oklch(31.7% 0.046 96)
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 #2B3049, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.014
- Gunmetal #293241 ΔE 0.018
- Prussian Blue #1D3557 ΔE 0.030
- Dark Blue Grey #1F3B4D ΔE 0.036
- Onyx #343A40 ΔE 0.045
- Midnight Green #073B4C ΔE 0.047
- Oxford Blue #1B263B ΔE 0.048
- Marine #042E60 ΔE 0.059
Use #2B3049 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.