#13879B
Closest named color: Teal Blue (#01889F). oklch(57.4% 0.097 213.4), rgb(19, 135, 155).
Aa
Black text reads best on this color (4.96:1).
About this color
#13879B is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 57%, its chroma 0.097 and its hue 213°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Blue (#01889F), ΔE 0.006 away. Black text reads best on it, at 4.96:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.097) |
| Temperature | cool |
| Nearest name | Teal Blue (#01889F) |
| Black text | 4.96:1 |
| White text | 4.22:1 |
Values
| HEX | #13879B |
| RGB | rgb(19, 135, 155) |
| HSL | hsl(189, 78%, 34%) |
| OKLCH | oklch(57.4% 0.097 213.4) |
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 #13879B | 4.22:1 | AA large text | Lc -74.2 | Content text, not long reading |
| Black text on #13879B | 4.96:1 | AA | Lc 35.4 | Non-text elements, placeholder text |
| #13879B text on white | 4.22:1 | AA large text | Lc 68.7 | Content text, not long reading |
| #13879B text on black | 4.96:1 | AA | Lc -32.9 | 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
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECEF
oklch(93.6% 0.012 215.8)
-
Step 200
200
#C8DEE3
oklch(88.6% 0.024 212.9)
-
Step 300
300
#A1C9D2
oklch(81% 0.044 212.9)
-
Step 400
400
#6BACBB
oklch(70.6% 0.07 214)
-
Step 500
500
#3C97AA
oklch(63% 0.089 213.9)
-
Step 600
600 (this color)
#13879B
oklch(57.4% 0.097 213.4)
-
Step 700
700
#006D7E
oklch(49.1% 0.086 213.3)
-
Step 800
800
#015967
oklch(42.6% 0.074 213.1)
-
Step 900
900
#124954
oklch(37.6% 0.058 214.1)
-
Step 950
950
#0D2B31
oklch(27% 0.037 212.9)
#13879B 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) | #78829C | 0.087 |
| Deuteranopia (no green cones) | #67769B | 0.079 |
| Tritanopia (no blue cones) | #008F8D | 0.038 |
| Achromatopsia (no color) | #7B7B7B | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #13879B
#13879B
oklch(57.4% 0.097 213.4)
- #AA6252
#AA6252
oklch(57.4% 0.097 33.4)
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 #13879B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Blue #01889F ΔE 0.006
- Dark Cyan #008B8B ΔE 0.032
- Blue NCS #118AB2 ΔE 0.035
- Ocean #017B92 ΔE 0.037
- Teal Green #0A9396 ΔE 0.040
- Cerulean #457B9D ΔE 0.044
- Teal #008080 ΔE 0.044
- Stormy Blue #507B9C ΔE 0.050
Use #13879B 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.