#17424D
Closest named color: Charcoal (#264653). oklch(35.4% 0.05 217.6), rgb(23, 66, 77).
Aa
White text reads best on this color (10.92:1).
About this color
#17424D is a dark, muted teal or cyan. In OKLCH its lightness is 35%, its chroma 0.050 and its hue 218°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.023 away. White text reads best on it, at 10.92:1.
| Hue family | Teals and cyans |
| Lightness | dark (35%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 1.92:1 |
| White text | 10.92:1 |
Values
| HEX | #17424D |
| RGB | rgb(23, 66, 77) |
| HSL | hsl(192, 54%, 20%) |
| OKLCH | oklch(35.4% 0.05 217.6) |
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 #17424D | 10.92:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #17424D | 1.92:1 | Fails | Lc 8.8 | Not readable |
| #17424D text on white | 10.92:1 | AAA | Lc 95.1 | Preferred for body text |
| #17424D text on black | 1.92:1 | Fails | Lc -7.5 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECEF
oklch(93.6% 0.011 217.5)
-
Step 200
200
#CBDDE2
oklch(88.6% 0.021 216.2)
-
Step 300
300
#A6C7D1
oklch(80.9% 0.038 218.1)
-
Step 400
400
#75AABA
oklch(70.7% 0.06 218.7)
-
Step 500
500
#4D95A8
oklch(63.1% 0.077 217.2)
-
Step 600
600
#2C7F94
oklch(55.6% 0.084 218)
-
Step 700
700
#1D6B7E
oklch(49.1% 0.078 218)
-
Step 800
800
#1B5766
oklch(42.6% 0.065 217.8)
-
Step 900
900 (this color)
#17424D
oklch(35.4% 0.05 217.6)
-
Step 950
950
#132A31
oklch(27% 0.032 219.8)
#17424D 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) | #3B404E | 0.044 |
| Deuteranopia (no green cones) | #333A4D | 0.040 |
| Tritanopia (no blue cones) | #004645 | 0.026 |
| Achromatopsia (no color) | #3D3D3D | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17424D
#17424D
oklch(35.4% 0.05 217.6)
- #533228
#533228
oklch(35.5% 0.051 37.6)
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 #17424D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.023
- Dark Blue Grey #1F3B4D ΔE 0.024
- Midnight Green #073B4C ΔE 0.028
- Dark Grey Blue #29465B ΔE 0.034
- Dark Teal #014D4E ΔE 0.037
- Onyx #343A40 ΔE 0.041
- Charcoal Grey #3C4142 ΔE 0.047
- Prussian Blue #1D3557 ΔE 0.051
Use #17424D 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.