#2B3247
Closest named color: Gunmetal (#293241). oklch(32% 0.039 269.9), rgb(43, 50, 71).
Aa
White text reads best on this color (12.72:1).
About this color
#2B3247 is a dark, muted blue. In OKLCH its lightness is 32%, its chroma 0.039 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.012 away. White text reads best on it, at 12.72:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.64:1 |
| White text | 12.72:1 |
Values
| HEX | #2B3247 |
| RGB | rgb(43, 50, 71) |
| HSL | hsl(225, 25%, 22%) |
| OKLCH | oklch(32% 0.039 269.9) |
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 #2B3247 | 12.72:1 | AAA | Lc -102.1 | Preferred for body text |
| Black text on #2B3247 | 1.64:1 | Fails | Lc 0.0 | Not readable |
| #2B3247 text on white | 12.72:1 | AAA | Lc 98.8 | Preferred for body text |
| #2B3247 text on black | 1.64:1 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E6EAF3
oklch(93.7% 0.013 266.7)
-
Step 200
200
#D2D9EB
oklch(88.5% 0.026 268.8)
-
Step 300
300
#B5C0DF
oklch(80.9% 0.045 269.9)
-
Step 400
400
#8E9FCF
oklch(70.7% 0.073 269.4)
-
Step 500
500
#7387C3
oklch(63.2% 0.094 269.5)
-
Step 600
600
#5C6FAF
oklch(55.5% 0.102 270.3)
-
Step 700
700
#4C5D97
oklch(49.1% 0.095 270.2)
-
Step 800
800
#3E4C7A
oklch(42.6% 0.079 270)
-
Step 900
900
#354062
oklch(37.8% 0.06 269.7)
-
Step 950
950 (this color)
#2B3247
oklch(32% 0.039 269.9)
#2B3247 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) | #2B3448 | 0.006 |
| Deuteranopia (no green cones) | #293147 | 0.005 |
| Tritanopia (no blue cones) | #233639 | 0.035 |
| Achromatopsia (no color) | #333333 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B3247
#2B3247
oklch(32% 0.039 269.9)
- #3B321B
#3B321B
oklch(32.1% 0.039 88.8)
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 #2B3247, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.012
- Space Cadet #2B2D42 ΔE 0.017
- Dark Blue Grey #1F3B4D ΔE 0.031
- Prussian Blue #1D3557 ΔE 0.032
- Onyx #343A40 ΔE 0.037
- Midnight Green #073B4C ΔE 0.042
- Oxford Blue #1B263B ΔE 0.051
- Charcoal Grey #3C4142 ΔE 0.062
Use #2B3247 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.