#2A404D
Closest named color: Charcoal (#264653). oklch(35.9% 0.036 235), rgb(42, 64, 77).
Aa
White text reads best on this color (10.83:1).
About this color
#2A404D is a dark, muted blue. In OKLCH its lightness is 36%, its chroma 0.036 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.019 away. White text reads best on it, at 10.83:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | muted (0.036) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 1.93:1 |
| White text | 10.83:1 |
Values
| HEX | #2A404D |
| RGB | rgb(42, 64, 77) |
| HSL | hsl(202, 29%, 23%) |
| OKLCH | oklch(35.9% 0.036 235) |
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 #2A404D | 10.83:1 | AAA | Lc -98.9 | Preferred for body text |
| Black text on #2A404D | 1.93:1 | Fails | Lc 8.9 | Not readable |
| #2A404D text on white | 10.83:1 | AAA | Lc 95.0 | Preferred for body text |
| #2A404D text on black | 1.93:1 | Fails | Lc -7.6 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBEE
oklch(93.6% 0.008 228.9)
-
Step 200
200
#D0DBE2
oklch(88.5% 0.015 235.4)
-
Step 300
300
#B1C4D0
oklch(81% 0.027 235.4)
-
Step 400
400
#87A5B8
oklch(70.6% 0.043 236)
-
Step 500
500
#698FA6
oklch(63% 0.055 235.4)
-
Step 600
600
#507991
oklch(55.5% 0.059 235)
-
Step 700
700
#40667C
oklch(49.1% 0.056 234.9)
-
Step 800
800
#355365
oklch(42.6% 0.047 235.7)
-
Step 900
900 (this color)
#2A404D
oklch(35.9% 0.036 235)
-
Step 950
950
#1C2830
oklch(26.9% 0.022 237.9)
#2A404D 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) | #3A3F4E | 0.023 |
| Deuteranopia (no green cones) | #353C4D | 0.019 |
| Tritanopia (no blue cones) | #1C4344 | 0.027 |
| Achromatopsia (no color) | #3D3D3D | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A404D
#2A404D
oklch(35.9% 0.036 235)
- #4C382B
#4C382B
oklch(35.9% 0.036 54.3)
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 #2A404D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.019
- Dark Blue Grey #1F3B4D ΔE 0.023
- Onyx #343A40 ΔE 0.027
- Dark Grey Blue #29465B ΔE 0.027
- Charcoal Grey #3C4142 ΔE 0.032
- Midnight Green #073B4C ΔE 0.038
- Gunmetal #293241 ΔE 0.046
- Dark Teal #014D4E ΔE 0.048
Use #2A404D 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.