#2A475D
Closest named color: Dark Grey Blue (#29465B). oklch(38.5% 0.051 242.5), rgb(42, 71, 93).
Aa
White text reads best on this color (9.73:1).
About this color
#2A475D is a dark, muted blue. In OKLCH its lightness is 39%, its chroma 0.051 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.005 away. White text reads best on it, at 9.73:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.15:1 |
| White text | 9.73:1 |
Values
| HEX | #2A475D |
| RGB | rgb(42, 71, 93) |
| HSL | hsl(206, 38%, 26%) |
| OKLCH | oklch(38.5% 0.051 242.5) |
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 #2A475D | 9.73:1 | AAA | Lc -96.7 | Preferred for body text |
| Black text on #2A475D | 2.15:1 | Fails | Lc 11.5 | Not readable |
| #2A475D text on white | 9.73:1 | AAA | Lc 92.5 | Preferred for body text |
| #2A475D text on black | 2.15:1 | Fails | Lc -10.0 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CDDBE6
oklch(88.4% 0.021 241.4)
-
Step 300
300
#ACC4D8
oklch(80.9% 0.039 243.3)
-
Step 400
400
#7FA6C4
oklch(70.7% 0.061 241.8)
-
Step 500
500
#5E8FB5
oklch(63% 0.078 242.8)
-
Step 600
600
#4379A1
oklch(55.6% 0.085 242.5)
-
Step 700
700
#34668A
oklch(49.2% 0.079 242.1)
-
Step 800
800
#2C5370
oklch(42.7% 0.066 242.6)
-
Step 900
900 (this color)
#2A475D
oklch(38.5% 0.051 242.5)
-
Step 950
950
#182835
oklch(26.9% 0.033 243.9)
#2A475D 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) | #3E475E | 0.027 |
| Deuteranopia (no green cones) | #37425D | 0.022 |
| Tritanopia (no blue cones) | #0F4C4E | 0.042 |
| Achromatopsia (no color) | #444444 | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A475D
#2A475D
oklch(38.5% 0.051 242.5)
- #573D26
#573D26
oklch(38.3% 0.051 61.9)
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 #2A475D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.005
- Charcoal #264653 ΔE 0.018
- Dark Slate Gray #2F4F4F ΔE 0.042
- Dark Blue Grey #1F3B4D ΔE 0.047
- Dark Teal #014D4E ΔE 0.047
- Charcoal Grey #3C4142 ΔE 0.048
- Deep Teal #00555A ΔE 0.051
- Onyx #343A40 ΔE 0.055
Use #2A475D 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.