#2A4A60
Closest named color: Dark Grey Blue (#29465B). oklch(39.4% 0.053 240), rgb(42, 74, 96).
Aa
White text reads best on this color (9.34:1).
About this color
#2A4A60 is a dark, muted blue. In OKLCH its lightness is 39%, its chroma 0.053 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.014 away. White text reads best on it, at 9.34:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.24:1 |
| White text | 9.34:1 |
Values
| HEX | #2A4A60 |
| RGB | rgb(42, 74, 96) |
| HSL | hsl(204, 39%, 27%) |
| OKLCH | oklch(39.4% 0.053 240) |
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 #2A4A60 | 9.34:1 | AAA | Lc -95.8 | Preferred for body text |
| Black text on #2A4A60 | 2.24:1 | Fails | Lc 12.5 | Not readable |
| #2A4A60 text on white | 9.34:1 | AAA | Lc 91.5 | Preferred for body text |
| #2A4A60 text on black | 2.24:1 | Fails | Lc -10.9 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF1
oklch(93.6% 0.012 239.9)
-
Step 200
200
#CDDBE7
oklch(88.4% 0.022 243.8)
-
Step 300
300
#AAC5D8
oklch(80.9% 0.04 238.7)
-
Step 400
400
#7CA6C5
oklch(70.6% 0.064 240.8)
-
Step 500
500
#5990B6
oklch(63% 0.082 240)
-
Step 600
600
#3D7AA2
oklch(55.6% 0.089 239.8)
-
Step 700
700
#2F668B
oklch(49% 0.083 240.8)
-
Step 800
800
#285471
oklch(42.8% 0.069 239.9)
-
Step 900
900 (this color)
#2A4A60
oklch(39.4% 0.053 240)
-
Step 950
950
#162935
oklch(27.1% 0.033 237.5)
#2A4A60 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) | #404A61 | 0.029 |
| Deuteranopia (no green cones) | #394460 | 0.025 |
| Tritanopia (no blue cones) | #0A4F51 | 0.043 |
| Achromatopsia (no color) | #474747 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A4A60
#2A4A60
oklch(39.4% 0.053 240)
- #5B3F28
#5B3F28
oklch(39.3% 0.053 59.8)
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 #2A4A60, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.014
- Charcoal #264653 ΔE 0.024
- Dark Slate Gray #2F4F4F ΔE 0.038
- Deep Teal #00555A ΔE 0.046
- Dark Teal #014D4E ΔE 0.047
- Charcoal Grey #3C4142 ΔE 0.053
- Dark Blue Grey #1F3B4D ΔE 0.056
- Twilight Blue #0A437A ΔE 0.059
Use #2A4A60 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.