#2A384B
Closest named color: Dark Blue Grey (#1F3B4D). oklch(33.7% 0.039 256.2), rgb(42, 56, 75).
Aa
White text reads best on this color (11.89:1).
About this color
#2A384B is a dark, muted blue. In OKLCH its lightness is 34%, its chroma 0.039 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Grey (#1F3B4D), ΔE 0.015 away. White text reads best on it, at 11.89:1.
| Hue family | Blues |
| Lightness | dark (34%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Dark Blue Grey (#1F3B4D) |
| Black text | 1.76:1 |
| White text | 11.89:1 |
Values
| HEX | #2A384B |
| RGB | rgb(42, 56, 75) |
| HSL | hsl(215, 28%, 23%) |
| OKLCH | oklch(33.7% 0.039 256.2) |
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 #2A384B | 11.89:1 | AAA | Lc -100.8 | Preferred for body text |
| Black text on #2A384B | 1.76:1 | Fails | Lc 0.0 | Not readable |
| #2A384B text on white | 11.89:1 | AAA | Lc 97.2 | Preferred for body text |
| #2A384B text on black | 1.76:1 | 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 900.
-
Step 50
50
#F4F6F8
oklch(97.2% 0.003 247.9)
-
Step 100
100
#E6EAEF
oklch(93.5% 0.008 253.9)
-
Step 200
200
#D2DAE4
oklch(88.5% 0.016 253.9)
-
Step 300
300
#B5C2D4
oklch(81% 0.029 256.5)
-
Step 400
400
#8EA2BE
oklch(70.6% 0.047 256.8)
-
Step 500
500
#728BAD
oklch(63% 0.059 256.2)
-
Step 600
600
#5B7599
oklch(55.6% 0.064 256.6)
-
Step 700
700
#4A6283
oklch(49.1% 0.061 256.5)
-
Step 800
800
#3D506A
oklch(42.7% 0.05 256.4)
-
Step 900
900 (this color)
#2A384B
oklch(33.7% 0.039 256.2)
-
Step 950
950
#1F2732
oklch(27% 0.024 256.4)
#2A384B 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) | #31394C | 0.012 |
| Deuteranopia (no green cones) | #2D364B | 0.007 |
| Tritanopia (no blue cones) | #1F3C3E | 0.034 |
| Achromatopsia (no color) | #373737 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A384B
#2A384B
oklch(33.7% 0.039 256.2)
- #433420
#433420
oklch(33.6% 0.039 73.9)
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 #2A384B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Grey #1F3B4D ΔE 0.015
- Gunmetal #293241 ΔE 0.023
- Onyx #343A40 ΔE 0.027
- Prussian Blue #1D3557 ΔE 0.031
- Midnight Green #073B4C ΔE 0.033
- Space Cadet #2B2D42 ΔE 0.036
- Charcoal #264653 ΔE 0.044
- Dark Grey Blue #29465B ΔE 0.047
Use #2A384B 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.