#344A54
Closest named color: Dark Slate Gray (#2F4F4F). oklch(39.5% 0.032 227.8), rgb(52, 74, 84).
Aa
White text reads best on this color (9.31:1).
About this color
#344A54 is a dark, muted teal or cyan. In OKLCH its lightness is 39%, its chroma 0.032 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.022 away. White text reads best on it, at 9.31:1.
| Hue family | Teals and cyans |
| Lightness | dark (39%) |
| Chroma | muted (0.032) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.25:1 |
| White text | 9.31:1 |
Values
| HEX | #344A54 |
| RGB | rgb(52, 74, 84) |
| HSL | hsl(199, 24%, 27%) |
| OKLCH | oklch(39.5% 0.032 227.8) |
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 #344A54 | 9.31:1 | AAA | Lc -95.8 | Preferred for body text |
| Black text on #344A54 | 2.25:1 | Fails | Lc 12.5 | Not readable |
| #344A54 text on white | 9.31:1 | AAA | Lc 91.5 | Preferred for body text |
| #344A54 text on black | 2.25:1 | Fails | Lc -10.9 | 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
#E5EBED
oklch(93.6% 0.007 219.6)
-
Step 200
200
#D0DBE0
oklch(88.5% 0.014 226.6)
-
Step 300
300
#B1C4CD
oklch(80.9% 0.024 227.8)
-
Step 400
400
#88A6B4
oklch(70.7% 0.039 227.9)
-
Step 500
500
#6A90A1
oklch(63.1% 0.049 227.3)
-
Step 600
600
#517A8C
oklch(55.6% 0.053 227.4)
-
Step 700
700
#426777
oklch(49.2% 0.049 227.1)
-
Step 800
800
#365461
oklch(42.8% 0.042 227.1)
-
Step 900
900 (this color)
#344A54
oklch(39.5% 0.032 227.8)
-
Step 950
950
#1C292E
oklch(27.1% 0.02 223.6)
#344A54 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) | #454955 | 0.025 |
| Deuteranopia (no green cones) | #404554 | 0.022 |
| Tritanopia (no blue cones) | #294D4D | 0.022 |
| Achromatopsia (no color) | #474747 | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #344A54
#344A54
oklch(39.5% 0.032 227.8)
- #554137
#554137
oklch(39.4% 0.032 47.9)
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 #344A54, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.022
- Charcoal #264653 ΔE 0.023
- Dark Grey Blue #29465B ΔE 0.025
- Charcoal Grey #3C4142 ΔE 0.035
- Dark Teal #014D4E ΔE 0.043
- Deep Teal #00555A ΔE 0.045
- Dark Blue Green #005249 ΔE 0.053
- Onyx #343A40 ΔE 0.054
Use #344A54 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.