#172E2A
Closest named color: Jet (#212529). oklch(28.1% 0.03 181.6), rgb(23, 46, 42).
Aa
White text reads best on this color (14.37:1).
About this color
#172E2A is a dark, muted teal or cyan. In OKLCH its lightness is 28%, its chroma 0.030 and its hue 182°. Its hue sits on the cool side of the wheel. The nearest named color is Jet (#212529), ΔE 0.033 away. White text reads best on it, at 14.37:1.
| Hue family | Teals and cyans |
| Lightness | dark (28%) |
| Chroma | muted (0.030) |
| Temperature | cool |
| Nearest name | Jet (#212529) |
| Black text | 1.46:1 |
| White text | 14.37:1 |
Values
| HEX | #172E2A |
| RGB | rgb(23, 46, 42) |
| HSL | hsl(170, 33%, 14%) |
| OKLCH | oklch(28.1% 0.03 181.6) |
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 #172E2A | 14.37:1 | AAA | Lc -104.0 | Preferred for body text |
| Black text on #172E2A | 1.46:1 | Fails | Lc 0.0 | Not readable |
| #172E2A text on white | 14.37:1 | AAA | Lc 101.1 | Preferred for body text |
| #172E2A text on black | 1.46:1 | Fails | Lc 0.0 | 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 950.
-
Step 50
50
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEA
oklch(93.6% 0.01 181.4)
-
Step 200
200
#CCDEDA
oklch(88.6% 0.02 181.1)
-
Step 300
300
#A8C9C2
oklch(81% 0.037 181.1)
-
Step 400
400
#78ADA3
oklch(70.8% 0.058 181.5)
-
Step 500
500
#53988C
oklch(63.1% 0.073 181.3)
-
Step 600
600
#338276
oklch(55.4% 0.079 181.7)
-
Step 700
700
#256E64
oklch(49% 0.073 182.5)
-
Step 800
800
#215A51
oklch(42.7% 0.061 181.2)
-
Step 900
900
#214A43
oklch(37.7% 0.048 181)
-
Step 950
950 (this color)
#172E2A
oklch(28.1% 0.03 181.6)
#172E2A 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) | #2C2C2A | 0.032 |
| Deuteranopia (no green cones) | #28292A | 0.029 |
| Tritanopia (no blue cones) | #0E2F2D | 0.009 |
| Achromatopsia (no color) | #2A2A2A | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #172E2A
#172E2A
oklch(28.1% 0.03 181.6)
- #362328
#362328
oklch(28.1% 0.03 1.9)
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 #172E2A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.033
- Dark #1B2431 ΔE 0.042
- Oxford Blue #1B263B ΔE 0.049
- Gunmetal #293241 ΔE 0.051
- Pakistan Green #283618 ΔE 0.052
- Space Cadet #2B2D42 ΔE 0.057
- Midnight Green #073B4C ΔE 0.064
- Very Dark Green #062E03 ΔE 0.065
Use #172E2A 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.