#12837F
Closest named color: Teal (#008080). oklch(55.3% 0.092 191), rgb(18, 131, 127).
Aa
White text reads best on this color (4.58:1).
About this color
#12837F is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 55%, its chroma 0.092 and its hue 191°. Its hue sits on the cool side of the wheel. The nearest named color is Teal (#008080), ΔE 0.011 away. White text reads best on it, at 4.58:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Teal (#008080) |
| Black text | 4.57:1 |
| White text | 4.58:1 |
Values
| HEX | #12837F |
| RGB | rgb(18, 131, 127) |
| HSL | hsl(178, 76%, 29%) |
| OKLCH | oklch(55.3% 0.092 191) |
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 #12837F | 4.58:1 | AA | Lc -76.9 | Fine for body text |
| Black text on #12837F | 4.57:1 | AA | Lc 32.7 | Non-text elements, placeholder text |
| #12837F text on white | 4.58:1 | AA | Lc 71.4 | Content text, not long reading |
| #12837F text on black | 4.57:1 | AA | Lc -30.3 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E1EDEC
oklch(93.7% 0.013 190.9)
-
Step 200
200
#C9DEDD
oklch(88.5% 0.022 193.3)
-
Step 300
300
#A3CAC7
oklch(81% 0.042 190.6)
-
Step 400
400
#6EAEAA
oklch(70.7% 0.066 190.7)
-
Step 500
500
#429A96
oklch(63.2% 0.084 191.2)
-
Step 600
600 (this color)
#12837F
oklch(55.3% 0.092 191)
-
Step 700
700
#00706C
oklch(49.2% 0.085 190.4)
-
Step 800
800
#0A5B58
oklch(42.7% 0.07 190.8)
-
Step 900
900
#164B48
oklch(37.8% 0.055 189.8)
-
Step 950
950
#0F2C2A
oklch(27% 0.035 189.2)
#12837F 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) | #7B7C7F | 0.097 |
| Deuteranopia (no green cones) | #6C7180 | 0.091 |
| Tritanopia (no blue cones) | #008782 | 0.012 |
| Achromatopsia (no color) | #757575 | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #12837F
#12837F
oklch(55.3% 0.092 191)
- #A05B65
#A05B65
oklch(55.3% 0.091 11.2)
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 #12837F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal #008080 ΔE 0.011
- Dark Cyan #008B8B ΔE 0.026
- Bluegreen #017A79 ΔE 0.029
- Deep Aqua #08787F ΔE 0.035
- Ocean #017B92 ΔE 0.045
- Teal Blue #01889F ΔE 0.048
- Deep Turquoise #017374 ΔE 0.050
- Dark Aquamarine #017371 ΔE 0.051
Use #12837F 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.