#2A453E
Closest named color: Charcoal Grey (#3C4142). oklch(36.6% 0.035 176.1), rgb(42, 69, 62).
Aa
White text reads best on this color (10.39:1).
About this color
#2A453E is a dark, muted teal or cyan. In OKLCH its lightness is 37%, its chroma 0.035 and its hue 176°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.030 away. White text reads best on it, at 10.39:1.
| Hue family | Teals and cyans |
| Lightness | dark (37%) |
| Chroma | muted (0.035) |
| Temperature | cool |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.01:1 |
| White text | 10.39:1 |
Values
| HEX | #2A453E |
| RGB | rgb(42, 69, 62) |
| HSL | hsl(164, 24%, 22%) |
| OKLCH | oklch(36.6% 0.035 176.1) |
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 #2A453E | 10.39:1 | AAA | Lc -98.1 | Preferred for body text |
| Black text on #2A453E | 2.01:1 | Fails | Lc 9.8 | Not readable |
| #2A453E text on white | 10.39:1 | AAA | Lc 94.1 | Preferred for body text |
| #2A453E text on black | 2.01:1 | Fails | Lc -8.5 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E5ECE9
oklch(93.7% 0.008 168.7)
-
Step 200
200
#D0DCD9
oklch(88.5% 0.014 179.4)
-
Step 300
300
#B0C7C0
oklch(81% 0.027 175.4)
-
Step 400
400
#85AA9F
oklch(70.7% 0.043 174.9)
-
Step 500
500
#669588
oklch(63.2% 0.055 175.3)
-
Step 600
600
#4C7F72
oklch(55.6% 0.059 176)
-
Step 700
700
#3D6B5F
oklch(49.1% 0.055 175.3)
-
Step 800
800
#33574E
oklch(42.7% 0.044 176.4)
-
Step 900
900 (this color)
#2A453E
oklch(36.6% 0.035 176.1)
-
Step 950
950
#1B2A26
oklch(27% 0.022 176.2)
#2A453E 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) | #43423E | 0.037 |
| Deuteranopia (no green cones) | #3E3E3F | 0.036 |
| Tritanopia (no blue cones) | #224643 | 0.011 |
| Achromatopsia (no color) | #404040 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A453E
#2A453E
oklch(36.6% 0.035 176.1)
- #4E373F
#4E373F
oklch(36.6% 0.035 356.3)
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 #2A453E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.030
- Charcoal #264653 ΔE 0.036
- Dark Teal #014D4E ΔE 0.037
- Dark Slate Gray #2F4F4F ΔE 0.039
- Onyx #343A40 ΔE 0.040
- Dark Blue Green #005249 ΔE 0.045
- Evergreen #05472A ΔE 0.050
- Dark Grey Blue #29465B ΔE 0.050
Use #2A453E 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.