#2B2D4F
Closest named color: Space Cadet (#2B2D42). oklch(31.3% 0.061 279.7), rgb(43, 45, 79).
Aa
White text reads best on this color (13.19:1).
About this color
#2B2D4F is a dark, muted blue. In OKLCH its lightness is 31%, its chroma 0.061 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.024 away. White text reads best on it, at 13.19:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.59:1 |
| White text | 13.19:1 |
Values
| HEX | #2B2D4F |
| RGB | rgb(43, 45, 79) |
| HSL | hsl(237, 30%, 24%) |
| OKLCH | oklch(31.3% 0.061 279.7) |
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 #2B2D4F | 13.19:1 | AAA | Lc -102.7 | Preferred for body text |
| Black text on #2B2D4F | 1.59:1 | Fails | Lc 0.0 | Not readable |
| #2B2D4F text on white | 13.19:1 | AAA | Lc 99.5 | Preferred for body text |
| #2B2D4F 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E7E9F8
oklch(93.7% 0.02 279.9)
-
Step 200
200
#D3D7F4
oklch(88.5% 0.04 279.3)
-
Step 300
300
#B7BCEF
oklch(80.9% 0.072 280.3)
-
Step 400
400
#9298E7
oklch(70.6% 0.115 279.7)
-
Step 500
500
#797DE0
oklch(63.2% 0.147 279.6)
-
Step 600
600
#6364CD
oklch(55.6% 0.159 279.5)
-
Step 700
700
#5352B2
oklch(49.1% 0.149 279.9)
-
Step 800
800
#434490
oklch(42.7% 0.123 279.3)
-
Step 900
900
#383A73
oklch(37.7% 0.096 279.2)
-
Step 950
950 (this color)
#2B2D4F
oklch(31.3% 0.061 279.7)
#2B2D4F 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) | #213150 | 0.018 |
| Deuteranopia (no green cones) | #1F2F4E | 0.019 |
| Tritanopia (no blue cones) | #20343A | 0.053 |
| Achromatopsia (no color) | #303030 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B2D4F
#2B2D4F
oklch(31.3% 0.061 279.7)
- #383105
#383105
oklch(31.2% 0.06 99.8)
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 #2B2D4F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.024
- Prussian Blue #1D3557 ΔE 0.030
- Gunmetal #293241 ΔE 0.034
- Dark Blue Grey #1F3B4D ΔE 0.048
- Oxford Blue #1B263B ΔE 0.049
- Marine #042E60 ΔE 0.050
- Midnight Green #073B4C ΔE 0.057
- Onyx #343A40 ΔE 0.059
Use #2B2D4F 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.