#2A2F41
Closest named color: Space Cadet (#2B2D42). oklch(30.9% 0.033 272.3), rgb(42, 47, 65).
Aa
White text reads best on this color (13.27:1).
About this color
#2A2F41 is a dark, muted blue. In OKLCH its lightness is 31%, its chroma 0.033 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.007 away. White text reads best on it, at 13.27:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.58:1 |
| White text | 13.27:1 |
Values
| HEX | #2A2F41 |
| RGB | rgb(42, 47, 65) |
| HSL | hsl(227, 21%, 21%) |
| OKLCH | oklch(30.9% 0.033 272.3) |
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 #2A2F41 | 13.27:1 | AAA | Lc -102.8 | Preferred for body text |
| Black text on #2A2F41 | 1.58:1 | Fails | Lc 0.0 | Not readable |
| #2A2F41 text on white | 13.27:1 | AAA | Lc 99.6 | Preferred for body text |
| #2A2F41 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7EAF2
oklch(93.7% 0.011 269.5)
-
Step 200
200
#D4D9E8
oklch(88.6% 0.021 271.2)
-
Step 300
300
#B7C0DB
oklch(80.9% 0.039 270.9)
-
Step 400
400
#939FC9
oklch(70.8% 0.063 272.3)
-
Step 500
500
#7887BB
oklch(63.2% 0.081 271.6)
-
Step 600
600
#6270A7
oklch(55.7% 0.087 272.4)
-
Step 700
700
#515D8F
oklch(49% 0.082 272.8)
-
Step 800
800
#424C74
oklch(42.6% 0.068 272.5)
-
Step 900
900
#38405E
oklch(37.8% 0.053 272.2)
-
Step 950
950 (this color)
#2A2F41
oklch(30.9% 0.033 272.3)
#2A2F41 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) | #293142 | 0.006 |
| Deuteranopia (no green cones) | #282F41 | 0.003 |
| Tritanopia (no blue cones) | #243235 | 0.029 |
| Achromatopsia (no color) | #303030 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A2F41
#2A2F41
oklch(30.9% 0.033 272.3)
- #36301C
#36301C
oklch(31% 0.034 93.3)
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 #2A2F41, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.007
- Gunmetal #293241 ΔE 0.010
- Dark Blue Grey #1F3B4D ΔE 0.040
- Oxford Blue #1B263B ΔE 0.041
- Prussian Blue #1D3557 ΔE 0.041
- Onyx #343A40 ΔE 0.043
- Midnight Green #073B4C ΔE 0.048
- Dark #1B2431 ΔE 0.052
Use #2A2F41 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.