#2A434D
Closest named color: Charcoal (#264653). oklch(36.7% 0.035 225.1), rgb(42, 67, 77).
Aa
White text reads best on this color (10.45:1).
About this color
#2A434D is a dark, muted teal or cyan. In OKLCH its lightness is 37%, its chroma 0.035 and its hue 225°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.012 away. White text reads best on it, at 10.45:1.
| Hue family | Teals and cyans |
| Lightness | dark (37%) |
| Chroma | muted (0.035) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 2.00:1 |
| White text | 10.45:1 |
Values
| HEX | #2A434D |
| RGB | rgb(42, 67, 77) |
| HSL | hsl(197, 29%, 23%) |
| OKLCH | oklch(36.7% 0.035 225.1) |
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 #2A434D | 10.45:1 | AAA | Lc -98.2 | Preferred for body text |
| Black text on #2A434D | 2.00:1 | Fails | Lc 9.7 | Not readable |
| #2A434D text on white | 10.45:1 | AAA | Lc 94.2 | Preferred for body text |
| #2A434D text on black | 2.00:1 | Fails | Lc -8.4 | 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
#CFDBE0
oklch(88.4% 0.015 224.5)
-
Step 300
300
#AFC5CE
oklch(81% 0.027 224.3)
-
Step 400
400
#85A7B5
oklch(70.8% 0.042 224.9)
-
Step 500
500
#6691A2
oklch(63.2% 0.053 224.5)
-
Step 600
600
#4C7B8D
oklch(55.6% 0.058 224.4)
-
Step 700
700
#3D6778
oklch(49% 0.054 225.9)
-
Step 800
800
#335462
oklch(42.6% 0.045 226.8)
-
Step 900
900 (this color)
#2A434D
oklch(36.7% 0.035 225.1)
-
Step 950
950
#1A292F
oklch(27% 0.023 224.8)
#2A434D 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) | #3D424E | 0.027 |
| Deuteranopia (no green cones) | #383E4D | 0.024 |
| Tritanopia (no blue cones) | #1C4646 | 0.024 |
| Achromatopsia (no color) | #3F3F3F | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A434D
#2A434D
oklch(36.7% 0.035 225.1)
- #4F392F
#4F392F
oklch(36.6% 0.036 45.5)
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 #2A434D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.012
- Dark Grey Blue #29465B ΔE 0.024
- Charcoal Grey #3C4142 ΔE 0.029
- Dark Blue Grey #1F3B4D ΔE 0.032
- Onyx #343A40 ΔE 0.032
- Dark Teal #014D4E ΔE 0.040
- Dark Slate Gray #2F4F4F ΔE 0.041
- Midnight Green #073B4C ΔE 0.044
Use #2A434D 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.