#17312E
Closest named color: Jet (#212529). oklch(29.1% 0.033 186), rgb(23, 49, 46).
Aa
White text reads best on this color (13.85:1).
About this color
#17312E is a dark, muted teal or cyan. In OKLCH its lightness is 29%, its chroma 0.033 and its hue 186°. Its hue sits on the cool side of the wheel. The nearest named color is Jet (#212529), ΔE 0.041 away. White text reads best on it, at 13.85:1.
| Hue family | Teals and cyans |
| Lightness | dark (29%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Jet (#212529) |
| Black text | 1.51:1 |
| White text | 13.85:1 |
Values
| HEX | #17312E |
| RGB | rgb(23, 49, 46) |
| HSL | hsl(173, 36%, 14%) |
| OKLCH | oklch(29.1% 0.033 186) |
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 #17312E | 13.85:1 | AAA | Lc -103.4 | Preferred for body text |
| Black text on #17312E | 1.51:1 | Fails | Lc 0.0 | Not readable |
| #17312E text on white | 13.85:1 | AAA | Lc 100.4 | Preferred for body text |
| #17312E text on black | 1.51:1 | 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
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E2ECEB
oklch(93.5% 0.011 189.8)
-
Step 200
200
#CADEDB
oklch(88.5% 0.022 186)
-
Step 300
300
#A5C9C4
oklch(80.8% 0.039 186.1)
-
Step 400
400
#73AEA6
oklch(70.8% 0.063 185.2)
-
Step 500
500
#4A9990
oklch(63% 0.079 185.6)
-
Step 600
600
#26837B
oklch(55.5% 0.085 186.7)
-
Step 700
700
#166F67
oklch(49% 0.08 185.7)
-
Step 800
800
#175B54
oklch(42.8% 0.067 185)
-
Step 900
900
#1B4A46
oklch(37.6% 0.051 187.6)
-
Step 950
950 (this color)
#17312E
oklch(29.1% 0.033 186)
#17312E 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) | #2F2E2E | 0.036 |
| Deuteranopia (no green cones) | #2A2B2E | 0.033 |
| Tritanopia (no blue cones) | #0C3230 | 0.010 |
| Achromatopsia (no color) | #2D2D2D | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17312E
#17312E
oklch(29.1% 0.033 186)
- #3A2529
#3A2529
oklch(29.2% 0.032 6.7)
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 #17312E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.041
- Gunmetal #293241 ΔE 0.045
- Pakistan Green #283618 ΔE 0.049
- Dark #1B2431 ΔE 0.049
- Oxford Blue #1B263B ΔE 0.052
- Space Cadet #2B2D42 ΔE 0.053
- Midnight Green #073B4C ΔE 0.055
- Dark Blue Grey #1F3B4D ΔE 0.060
Use #17312E 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.