#12919B
Closest named color: Teal Green (#0A9396). oklch(60% 0.099 203.7), rgb(18, 145, 155).
Aa
Black text reads best on this color (5.54:1).
About this color
#12919B is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 60%, its chroma 0.099 and its hue 204°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Green (#0A9396), ΔE 0.011 away. Black text reads best on it, at 5.54:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Teal Green (#0A9396) |
| Black text | 5.54:1 |
| White text | 3.78:1 |
Values
| HEX | #12919B |
| RGB | rgb(18, 145, 155) |
| HSL | hsl(184, 79%, 34%) |
| OKLCH | oklch(60% 0.099 203.7) |
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 #12919B | 3.78:1 | AA large text | Lc -70.4 | Content text, not long reading |
| Black text on #12919B | 5.54:1 | AA | Lc 39.2 | Non-text elements, placeholder text |
| #12919B text on white | 3.78:1 | AA large text | Lc 64.9 | Content text, not long reading |
| #12919B text on black | 5.54:1 | AA | Lc -36.8 | 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 500.
-
Step 50
50
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#E0EDEE
oklch(93.7% 0.014 202.5)
-
Step 200
200
#C6DFE1
oklch(88.6% 0.027 202.5)
-
Step 300
300
#9CCACF
oklch(80.8% 0.049 204.5)
-
Step 400
400
#61AFB7
oklch(70.7% 0.078 204.2)
-
Step 500
500 (this color)
#12919B
oklch(60% 0.099 203.7)
-
Step 600
600
#00838C
oklch(55.6% 0.095 203.3)
-
Step 700
700
#006E76
oklch(49.1% 0.084 203.6)
-
Step 800
800
#005A61
oklch(42.6% 0.073 204)
-
Step 900
900
#004B51
oklch(37.6% 0.064 204)
-
Step 950
950
#072C2F
oklch(26.9% 0.041 202.9)
#12919B 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) | #848A9C | 0.098 |
| Deuteranopia (no green cones) | #737E9B | 0.090 |
| Tritanopia (no blue cones) | #009794 | 0.024 |
| Achromatopsia (no color) | #838383 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #12919B
#12919B
oklch(60% 0.099 203.7)
- #B46763
#B46763
oklch(59.9% 0.1 23.6)
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 #12919B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Green #0A9396 ΔE 0.011
- Dark Cyan #008B8B ΔE 0.028
- Teal Blue #01889F ΔE 0.031
- Sea #3C9992 ΔE 0.038
- Blue Green #0F9B8E ΔE 0.041
- Dusty Teal #4C9085 ΔE 0.042
- Blue NCS #118AB2 ΔE 0.047
- Persian Green #2A9D8F ΔE 0.047
Use #12919B 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.