#2B2F43
Closest named color: Space Cadet (#2B2D42). oklch(31% 0.036 275.3), rgb(43, 47, 67).
Aa
White text reads best on this color (13.20:1).
About this color
#2B2F43 is a dark, muted blue. In OKLCH its lightness is 31%, its chroma 0.036 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.006 away. White text reads best on it, at 13.20:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | muted (0.036) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.59:1 |
| White text | 13.20:1 |
Values
| HEX | #2B2F43 |
| RGB | rgb(43, 47, 67) |
| HSL | hsl(230, 22%, 22%) |
| OKLCH | oklch(31% 0.036 275.3) |
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 #2B2F43 | 13.20:1 | AAA | Lc -102.7 | Preferred for body text |
| Black text on #2B2F43 | 1.59:1 | Fails | Lc 0.0 | Not readable |
| #2B2F43 text on white | 13.20:1 | AAA | Lc 99.5 | Preferred for body text |
| #2B2F43 text on black | 1.59:1 | 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
#E7E9F2
oklch(93.5% 0.012 276.1)
-
Step 200
200
#D4D8E9
oklch(88.4% 0.024 275.3)
-
Step 300
300
#B8BFDD
oklch(80.9% 0.043 275)
-
Step 400
400
#949ECC
oklch(70.8% 0.068 275)
-
Step 500
500
#7A85BF
oklch(63.1% 0.088 275.3)
-
Step 600
600
#636EAB
oklch(55.6% 0.096 275.1)
-
Step 700
700
#525C93
oklch(49.1% 0.089 274.8)
-
Step 800
800
#434B77
oklch(42.6% 0.074 275)
-
Step 900
900
#393F60
oklch(37.7% 0.057 275.4)
-
Step 950
950 (this color)
#2B2F43
oklch(31% 0.036 275.3)
#2B2F43 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) | #293144 | 0.007 |
| Deuteranopia (no green cones) | #272F43 | 0.006 |
| Tritanopia (no blue cones) | #253336 | 0.033 |
| Achromatopsia (no color) | #303030 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B2F43
#2B2F43
oklch(31% 0.036 275.3)
- #36301A
#36301A
oklch(30.9% 0.037 94.6)
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 #2B2F43, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.006
- Gunmetal #293241 ΔE 0.012
- Prussian Blue #1D3557 ΔE 0.039
- Dark Blue Grey #1F3B4D ΔE 0.040
- Oxford Blue #1B263B ΔE 0.043
- Onyx #343A40 ΔE 0.043
- Midnight Green #073B4C ΔE 0.048
- Dark #1B2431 ΔE 0.054
Use #2B2F43 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.