#2D2F3F
Closest named color: Space Cadet (#2B2D42). oklch(31% 0.029 279), rgb(45, 47, 63).
Aa
White text reads best on this color (13.20:1).
About this color
#2D2F3F is a dark close to neutral grey. In OKLCH its lightness is 31%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Space Cadet (#2B2D42), ΔE 0.011 away. White text reads best on it, at 13.20:1.
| Hue family | Neutrals |
| Lightness | dark (31%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.58:1 |
| White text | 13.20:1 |
Values
| HEX | #2D2F3F |
| RGB | rgb(45, 47, 63) |
| HSL | hsl(233, 17%, 21%) |
| OKLCH | oklch(31% 0.029 279) |
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 #2D2F3F | 13.20:1 | AAA | Lc -102.8 | Preferred for body text |
| Black text on #2D2F3F | 1.58:1 | Fails | Lc 0.0 | Not readable |
| #2D2F3F text on white | 13.20:1 | AAA | Lc 99.6 | Preferred for body text |
| #2D2F3F text on black | 1.58:1 | 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
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#E8E9F1
oklch(93.6% 0.011 280.5)
-
Step 200
200
#D6D8E6
oklch(88.5% 0.019 279.5)
-
Step 300
300
#BBBFD7
oklch(80.9% 0.034 278.1)
-
Step 400
400
#999EC3
oklch(70.8% 0.054 278.9)
-
Step 500
500
#8085B4
oklch(63% 0.071 279.4)
-
Step 600
600
#6A6F9F
oklch(55.7% 0.075 279.1)
-
Step 700
700
#585C88
oklch(49% 0.071 279.5)
-
Step 800
800
#484C6F
oklch(42.8% 0.058 278.6)
-
Step 900
900
#3C3F5A
oklch(37.7% 0.046 279)
-
Step 950
950 (this color)
#2D2F3F
oklch(31% 0.029 279)
#2D2F3F 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) | #2B3140 | 0.007 |
| Deuteranopia (no green cones) | #2A2F3F | 0.005 |
| Tritanopia (no blue cones) | #293234 | 0.026 |
| Achromatopsia (no color) | #303030 | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D2F3F
#2D2F3F
oklch(31% 0.029 279)
- #343120
#343120
oklch(31.1% 0.029 99.3)
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 #2D2F3F, 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 0.011
- Onyx #343A40 ΔE 0.040
- Dark Blue Grey #1F3B4D ΔE 0.042
- Oxford Blue #1B263B ΔE 0.044
- Prussian Blue #1D3557 ΔE 0.046
- Midnight Green #073B4C ΔE 0.051
- Jet #212529 ΔE 0.053
Use #2D2F3F 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.