#2B3046
Closest named color: Space Cadet (#2B2D42). oklch(31.5% 0.04 274), rgb(43, 48, 70).
Aa
White text reads best on this color (13.01:1).
About this color
#2B3046 is a dark, muted blue. In OKLCH its lightness is 31%, its chroma 0.040 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.011 away. White text reads best on it, at 13.01:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | muted (0.040) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.61:1 |
| White text | 13.01:1 |
Values
| HEX | #2B3046 |
| RGB | rgb(43, 48, 70) |
| HSL | hsl(229, 24%, 22%) |
| OKLCH | oklch(31.5% 0.04 274) |
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 #2B3046 | 13.01:1 | AAA | Lc -102.5 | Preferred for body text |
| Black text on #2B3046 | 1.61:1 | Fails | Lc 0.0 | Not readable |
| #2B3046 text on white | 13.01:1 | AAA | Lc 99.2 | Preferred for body text |
| #2B3046 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F3
oklch(93.5% 0.014 277.1)
-
Step 200
200
#D3D8EB
oklch(88.4% 0.027 274.1)
-
Step 300
300
#B7BFE0
oklch(80.9% 0.047 274.6)
-
Step 400
400
#929ED1
oklch(70.9% 0.076 274.1)
-
Step 500
500
#7785C4
oklch(63.1% 0.096 273.8)
-
Step 600
600
#606EB1
oklch(55.7% 0.105 273.6)
-
Step 700
700
#505B98
oklch(49% 0.098 274.5)
-
Step 800
800
#414B7B
oklch(42.7% 0.081 273.6)
-
Step 900
900
#373F63
oklch(37.7% 0.063 273.5)
-
Step 950
950 (this color)
#2B3046
oklch(31.5% 0.04 274)
#2B3046 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) | #293247 | 0.007 |
| Deuteranopia (no green cones) | #273045 | 0.007 |
| Tritanopia (no blue cones) | #233438 | 0.035 |
| Achromatopsia (no color) | #313131 | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B3046
#2B3046
oklch(31.5% 0.04 274)
- #383119
#383119
oklch(31.4% 0.04 93.6)
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 #2B3046, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.011
- Gunmetal #293241 ΔE 0.013
- Prussian Blue #1D3557 ΔE 0.034
- Dark Blue Grey #1F3B4D ΔE 0.036
- Onyx #343A40 ΔE 0.042
- Midnight Green #073B4C ΔE 0.046
- Oxford Blue #1B263B ΔE 0.046
- Dark #1B2431 ΔE 0.059
Use #2B3046 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.