#2A4549
Closest named color: Charcoal (#264653). oklch(37% 0.033 207.6), rgb(42, 69, 73).
Aa
White text reads best on this color (10.26:1).
About this color
#2A4549 is a dark, muted teal or cyan. In OKLCH its lightness is 37%, its chroma 0.033 and its hue 208°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.017 away. White text reads best on it, at 10.26:1.
| Hue family | Teals and cyans |
| Lightness | dark (37%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 2.04:1 |
| White text | 10.26:1 |
Values
| HEX | #2A4549 |
| RGB | rgb(42, 69, 73) |
| HSL | hsl(188, 27%, 23%) |
| OKLCH | oklch(37% 0.033 207.6) |
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 #2A4549 | 10.26:1 | AAA | Lc -97.8 | Preferred for body text |
| Black text on #2A4549 | 2.04:1 | Fails | Lc 10.2 | Not readable |
| #2A4549 text on white | 10.26:1 | AAA | Lc 93.8 | Preferred for body text |
| #2A4549 text on black | 2.04:1 | Fails | Lc -8.8 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E5EBEC
oklch(93.6% 0.007 208.8)
-
Step 200
200
#CFDCDE
oklch(88.5% 0.014 207.9)
-
Step 300
300
#AFC6C9
oklch(81% 0.025 206.2)
-
Step 400
400
#84A8AE
oklch(70.7% 0.04 208.8)
-
Step 500
500
#64939A
oklch(63.2% 0.052 207.6)
-
Step 600
600
#4A7D84
oklch(55.7% 0.056 206.9)
-
Step 700
700
#3B6970
oklch(49.1% 0.052 208.1)
-
Step 800
800
#31565B
oklch(42.8% 0.043 206.7)
-
Step 900
900 (this color)
#2A4549
oklch(37% 0.033 207.6)
-
Step 950
950
#1A292C
oklch(26.9% 0.021 211.4)
#2A4549 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) | #414349 | 0.033 |
| Deuteranopia (no green cones) | #3C3F49 | 0.030 |
| Tritanopia (no blue cones) | #1D4746 | 0.017 |
| Achromatopsia (no color) | #414141 | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A4549
#2A4549
oklch(37% 0.033 207.6)
- #503936
#503936
oklch(37% 0.033 27.2)
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 #2A4549, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.017
- Charcoal Grey #3C4142 ΔE 0.027
- Dark Grey Blue #29465B ΔE 0.031
- Dark Slate Gray #2F4F4F ΔE 0.034
- Dark Teal #014D4E ΔE 0.034
- Onyx #343A40 ΔE 0.036
- Dark Blue Grey #1F3B4D ΔE 0.040
- Dark Blue Green #005249 ΔE 0.048
Use #2A4549 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.