#2B2F4F
Closest named color: Space Cadet (#2B2D42). oklch(31.7% 0.057 277.2), rgb(43, 47, 79).
Aa
White text reads best on this color (12.94:1).
About this color
#2B2F4F is a dark, muted blue. In OKLCH its lightness is 32%, its chroma 0.057 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.023 away. White text reads best on it, at 12.94:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.62:1 |
| White text | 12.94:1 |
Values
| HEX | #2B2F4F |
| RGB | rgb(43, 47, 79) |
| HSL | hsl(233, 30%, 24%) |
| OKLCH | oklch(31.7% 0.057 277.2) |
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 #2B2F4F | 12.94:1 | AAA | Lc -102.4 | Preferred for body text |
| Black text on #2B2F4F | 1.62:1 | Fails | Lc 0.0 | Not readable |
| #2B2F4F text on white | 12.94:1 | AAA | Lc 99.1 | Preferred for body text |
| #2B2F4F 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E6E9F7
oklch(93.6% 0.019 276.3)
-
Step 200
200
#D2D7F3
oklch(88.4% 0.039 277.6)
-
Step 300
300
#B5BDED
oklch(80.9% 0.068 277.4)
-
Step 400
400
#909AE4
oklch(70.8% 0.109 277.3)
-
Step 500
500
#767FDC
oklch(63.1% 0.139 277.5)
-
Step 600
600
#5F67C9
oklch(55.6% 0.15 276.9)
-
Step 700
700
#4F55AE
oklch(49.1% 0.14 277.1)
-
Step 800
800
#41468D
oklch(42.8% 0.116 277.3)
-
Step 900
900
#363B71
oklch(37.6% 0.092 277.1)
-
Step 950
950 (this color)
#2B2F4F
oklch(31.7% 0.057 277.2)
#2B2F4F 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) | #243350 | 0.015 |
| Deuteranopia (no green cones) | #21304E | 0.015 |
| Tritanopia (no blue cones) | #20353B | 0.049 |
| Achromatopsia (no color) | #313131 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B2F4F
#2B2F4F
oklch(31.7% 0.057 277.2)
- #3A320A
#3A320A
oklch(31.7% 0.057 97.6)
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 #2B2F4F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.023
- Prussian Blue #1D3557 ΔE 0.026
- Gunmetal #293241 ΔE 0.030
- Dark Blue Grey #1F3B4D ΔE 0.042
- Marine #042E60 ΔE 0.051
- Midnight Green #073B4C ΔE 0.052
- Oxford Blue #1B263B ΔE 0.052
- Onyx #343A40 ΔE 0.054
Use #2B2F4F 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.