#344A4B
Closest named color: Dark Slate Gray (#2F4F4F). oklch(39.1% 0.027 199.6), rgb(52, 74, 75).
Aa
White text reads best on this color (9.42:1).
About this color
#344A4B is a dark close to neutral grey. In OKLCH its lightness is 39%, its chroma 0.027. It has too little chroma to lean warm or cool. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.016 away. White text reads best on it, at 9.42:1.
| Hue family | Neutrals |
| Lightness | dark (39%) |
| Chroma | close to neutral grey (0.027) |
| Temperature | neutral |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.22:1 |
| White text | 9.42:1 |
Values
| HEX | #344A4B |
| RGB | rgb(52, 74, 75) |
| HSL | hsl(183, 18%, 25%) |
| OKLCH | oklch(39.1% 0.027 199.6) |
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 #344A4B | 9.42:1 | AAA | Lc -96.1 | Preferred for body text |
| Black text on #344A4B | 2.22:1 | Fails | Lc 12.2 | Not readable |
| #344A4B text on white | 9.42:1 | AAA | Lc 91.8 | Preferred for body text |
| #344A4B text on black | 2.22:1 | Fails | Lc -10.6 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E6EBEB
oklch(93.6% 0.005 197.1)
-
Step 200
200
#D1DBDC
oklch(88.4% 0.011 204.1)
-
Step 300
300
#B2C5C6
oklch(80.9% 0.021 200.6)
-
Step 400
400
#8AA7A8
oklch(70.7% 0.032 199)
-
Step 500
500
#6C9293
oklch(63.2% 0.042 198.2)
-
Step 600
600
#537C7E
oklch(55.7% 0.046 199.8)
-
Step 700
700
#43686A
oklch(49% 0.042 200.2)
-
Step 800
800
#385556
oklch(42.7% 0.035 198.7)
-
Step 900
900 (this color)
#344A4B
oklch(39.1% 0.027 199.6)
-
Step 950
950
#1D292A
oklch(27% 0.017 202.6)
#344A4B 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) | #47484B | 0.028 |
| Deuteranopia (no green cones) | #43454B | 0.026 |
| Tritanopia (no blue cones) | #2C4C4A | 0.012 |
| Achromatopsia (no color) | #464646 | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #344A4B
#344A4B
oklch(39.1% 0.027 199.6)
- #53403F
#53403F
oklch(39.2% 0.027 21.9)
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 #344A4B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.016
- Charcoal #264653 ΔE 0.028
- Charcoal Grey #3C4142 ΔE 0.029
- Dark Grey Blue #29465B ΔE 0.036
- Dark Teal #014D4E ΔE 0.039
- Dark Blue Green #005249 ΔE 0.045
- Deep Teal #00555A ΔE 0.046
- Onyx #343A40 ΔE 0.051
Use #344A4B 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.