#2A3247
Closest named color: Gunmetal (#293241). oklch(31.9% 0.039 268.1), rgb(42, 50, 71).
Aa
White text reads best on this color (12.76:1).
About this color
#2A3247 is a dark, muted blue. In OKLCH its lightness is 32%, its chroma 0.039 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.011 away. White text reads best on it, at 12.76:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.64:1 |
| White text | 12.76:1 |
Values
| HEX | #2A3247 |
| RGB | rgb(42, 50, 71) |
| HSL | hsl(223, 26%, 22%) |
| OKLCH | oklch(31.9% 0.039 268.1) |
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 #2A3247 | 12.76:1 | AAA | Lc -102.2 | Preferred for body text |
| Black text on #2A3247 | 1.64:1 | Fails | Lc 0.0 | Not readable |
| #2A3247 text on white | 12.76:1 | AAA | Lc 98.8 | Preferred for body text |
| #2A3247 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
#B4C0E0
oklch(80.9% 0.047 269.1)
-
Step 400
400
#8D9FD0
oklch(70.7% 0.075 268.8)
-
Step 500
500
#7187C4
oklch(63.1% 0.096 268.4)
-
Step 600
600
#5970B0
oklch(55.6% 0.104 268)
-
Step 700
700
#495E97
oklch(49.2% 0.095 267.5)
-
Step 800
800
#3C4D7B
oklch(42.8% 0.08 267.6)
-
Step 900
900
#334063
oklch(37.7% 0.063 267.8)
-
Step 950
950 (this color)
#2A3247
oklch(31.9% 0.039 268.1)
#2A3247 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 | 0.007 |
| Deuteranopia (no green cones) | #283147 | 0.005 |
| Tritanopia (no blue cones) | #213639 | 0.035 |
| Achromatopsia (no color) | #323232 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A3247
#2A3247
oklch(31.9% 0.039 268.1)
- #3B321A
#3B321A
oklch(32% 0.04 89.5)
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 #2A3247, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.011
- Space Cadet #2B2D42 ΔE 0.016
- Dark Blue Grey #1F3B4D ΔE 0.030
- Prussian Blue #1D3557 ΔE 0.031
- Onyx #343A40 ΔE 0.037
- Midnight Green #073B4C ΔE 0.041
- Oxford Blue #1B263B ΔE 0.050
- Marine #042E60 ΔE 0.063
Use #2A3247 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.