#134F59
Closest named color: Deep Teal (#00555A). oklch(39.5% 0.061 211.2), rgb(19, 79, 89).
Aa
White text reads best on this color (9.16:1).
About this color
#134F59 is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.061 and its hue 211°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.020 away. White text reads best on it, at 9.16:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.29:1 |
| White text | 9.16:1 |
Values
| HEX | #134F59 |
| RGB | rgb(19, 79, 89) |
| HSL | hsl(189, 65%, 21%) |
| OKLCH | oklch(39.5% 0.061 211.2) |
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 #134F59 | 9.16:1 | AAA | Lc -95.2 | Preferred for body text |
| Black text on #134F59 | 2.29:1 | Fails | Lc 13.1 | Not readable |
| #134F59 text on white | 9.16:1 | AAA | Lc 90.8 | Preferred for body text |
| #134F59 text on black | 2.29:1 | Fails | Lc -11.5 | 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 900.
-
Step 50
50
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#E0ECEF
oklch(93.5% 0.013 214.4)
-
Step 200
200
#C7DEE3
oklch(88.5% 0.025 212.2)
-
Step 300
300
#9FC9D1
oklch(80.8% 0.046 210.5)
-
Step 400
400
#67ADBB
oklch(70.7% 0.073 211.8)
-
Step 500
500
#3498AA
oklch(63% 0.094 211.9)
-
Step 600
600
#008293
oklch(55.6% 0.096 210.7)
-
Step 700
700
#006D7C
oklch(49% 0.085 211.2)
-
Step 800
800
#005966
oklch(42.6% 0.074 211.8)
-
Step 900
900 (this color)
#134F59
oklch(39.5% 0.061 211.2)
-
Step 950
950
#0B2B31
oklch(26.9% 0.038 212.2)
#134F59 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) | #474C5A | 0.057 |
| Deuteranopia (no green cones) | #3D4559 | 0.051 |
| Tritanopia (no blue cones) | #005352 | 0.022 |
| Achromatopsia (no color) | #484848 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #134F59
#134F59
oklch(39.5% 0.061 211.2)
- #633A32
#633A32
oklch(39.6% 0.06 31.8)
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 #134F59, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.020
- Dark Teal #014D4E ΔE 0.022
- Dark Slate Gray #2F4F4F ΔE 0.028
- Charcoal #264653 ΔE 0.030
- Dark Grey Blue #29465B ΔE 0.034
- Dark Blue Green #005249 ΔE 0.034
- Petrol #005F6A ΔE 0.052
- Charcoal Grey #3C4142 ΔE 0.059
Use #134F59 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.