#2A4065
Closest named color: Dark Grey Blue (#29465B). oklch(37.2% 0.07 260.3), rgb(42, 64, 101).
Aa
White text reads best on this color (10.39:1).
About this color
#2A4065 is a dark, muted blue. In OKLCH its lightness is 37%, its chroma 0.070 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.029 away. White text reads best on it, at 10.39:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | muted (0.070) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.01:1 |
| White text | 10.39:1 |
Values
| HEX | #2A4065 |
| RGB | rgb(42, 64, 101) |
| HSL | hsl(218, 41%, 28%) |
| OKLCH | oklch(37.2% 0.07 260.3) |
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 #2A4065 | 10.39:1 | AAA | Lc -98.0 | Preferred for body text |
| Black text on #2A4065 | 2.01:1 | Fails | Lc 9.9 | Not readable |
| #2A4065 text on white | 10.39:1 | AAA | Lc 94.0 | Preferred for body text |
| #2A4065 text on black | 2.01:1 | Fails | Lc -8.5 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CEDAED
oklch(88.5% 0.029 259.6)
-
Step 300
300
#ADC2E3
oklch(80.9% 0.052 259.4)
-
Step 400
400
#82A2D5
oklch(70.8% 0.083 259.6)
-
Step 500
500
#638ACA
oklch(63.2% 0.106 260)
-
Step 600
600
#4A72B7
oklch(55.5% 0.117 260.7)
-
Step 700
700
#3B609E
oklch(49.2% 0.109 260.2)
-
Step 800
800
#314E80
oklch(42.6% 0.091 260.7)
-
Step 900
900 (this color)
#2A4065
oklch(37.2% 0.07 260.3)
-
Step 950
950
#1A263C
oklch(26.9% 0.045 261.9)
#2A4065 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) | #314367 | 0.014 |
| Deuteranopia (no green cones) | #2A3D64 | 0.009 |
| Tritanopia (no blue cones) | #06484D | 0.063 |
| Achromatopsia (no color) | #404040 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A4065
#2A4065
oklch(37.2% 0.07 260.3)
- #533C0B
#533C0B
oklch(37.3% 0.07 81.5)
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 #2A4065, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.029
- Twilight Blue #0A437A ΔE 0.041
- Charcoal #264653 ΔE 0.042
- Prussian Blue #1D3557 ΔE 0.044
- Dark Blue Grey #1F3B4D ΔE 0.046
- Marine Blue #01386A ΔE 0.047
- Midnight Green #073B4C ΔE 0.058
- Onyx #343A40 ΔE 0.063
Use #2A4065 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.