#232F42
Closest named color: Space Cadet (#2B2D42). oklch(30.3% 0.038 259.4), rgb(35, 47, 66).
Aa
White text reads best on this color (13.48:1).
About this color
#232F42 is a dark, muted blue. In OKLCH its lightness is 30%, its chroma 0.038 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.014 away. White text reads best on it, at 13.48:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | muted (0.038) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.55:1 |
| White text | 13.48:1 |
Values
| HEX | #232F42 |
| RGB | rgb(35, 47, 66) |
| HSL | hsl(217, 31%, 20%) |
| OKLCH | oklch(30.3% 0.038 259.4) |
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 #232F42 | 13.48:1 | AAA | Lc -103.1 | Preferred for body text |
| Black text on #232F42 | 1.55:1 | Fails | Lc 0.0 | Not readable |
| #232F42 text on white | 13.48:1 | AAA | Lc 99.9 | Preferred for body text |
| #232F42 text on black | 1.55:1 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E5EAF3
oklch(93.6% 0.013 262.4)
-
Step 200
200
#CFDAEA
oklch(88.5% 0.025 257.6)
-
Step 300
300
#B0C2DF
oklch(81% 0.046 259.9)
-
Step 400
400
#86A2CE
oklch(70.7% 0.072 259.3)
-
Step 500
500
#678AC2
oklch(63% 0.094 259.5)
-
Step 600
600
#4F73AE
oklch(55.5% 0.101 259.9)
-
Step 700
700
#406196
oklch(49.2% 0.094 259.5)
-
Step 800
800
#354F79
oklch(42.7% 0.077 259.6)
-
Step 900
900
#2E4262
oklch(37.8% 0.061 259.5)
-
Step 950
950 (this color)
#232F42
oklch(30.3% 0.038 259.4)
#232F42 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) | #283043 | 0.009 |
| Deuteranopia (no green cones) | #252D42 | 0.007 |
| Tritanopia (no blue cones) | #183336 | 0.033 |
| Achromatopsia (no color) | #2E2E2E | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #232F42
#232F42
oklch(30.3% 0.038 259.4)
- #392C17
#392C17
oklch(30.2% 0.039 78.5)
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 #232F42, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.014
- Gunmetal #293241 ΔE 0.015
- Oxford Blue #1B263B ΔE 0.034
- Prussian Blue #1D3557 ΔE 0.038
- Dark Blue Grey #1F3B4D ΔE 0.040
- Midnight Green #073B4C ΔE 0.043
- Dark #1B2431 ΔE 0.047
- Onyx #343A40 ΔE 0.049
Use #232F42 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.