#00859E
Closest named color: Teal Blue (#01889F). oklch(56.9% 0.102 217.2), rgb(0, 133, 158).
Aa
Black text reads best on this color (4.84:1).
About this color
#00859E is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 57%, its chroma 0.102 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Blue (#01889F), ΔE 0.009 away. Black text reads best on it, at 4.84:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Teal Blue (#01889F) |
| Black text | 4.84:1 |
| White text | 4.33:1 |
Values
| HEX | #00859E |
| RGB | rgb(0, 133, 158) |
| HSL | hsl(189, 100%, 31%) |
| OKLCH | oklch(56.9% 0.102 217.2) |
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 #00859E | 4.33:1 | AA large text | Lc -74.9 | Content text, not long reading |
| Black text on #00859E | 4.84:1 | AA | Lc 34.7 | Non-text elements, placeholder text |
| #00859E text on white | 4.33:1 | AA large text | Lc 69.4 | Content text, not long reading |
| #00859E text on black | 4.84:1 | AA | Lc -32.3 | 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
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECF0
oklch(93.6% 0.013 221.4)
-
Step 200
200
#C7DEE4
oklch(88.5% 0.026 215.2)
-
Step 300
300
#A0C8D4
oklch(80.8% 0.046 218)
-
Step 400
400
#69ACBF
oklch(70.7% 0.073 217.9)
-
Step 500
500
#3897AE
oklch(63% 0.093 216.9)
-
Step 600
600 (this color)
#00859E
oklch(56.9% 0.102 217.2)
-
Step 700
700
#006C81
oklch(49% 0.088 217.4)
-
Step 800
800
#00596A
oklch(42.8% 0.076 216.6)
-
Step 900
900
#0F4957
oklch(37.6% 0.061 218.1)
-
Step 950
950
#0C2B33
oklch(27% 0.039 217.8)
#00859E 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) | #75819F | 0.088 |
| Deuteranopia (no green cones) | #63749E | 0.078 |
| Tritanopia (no blue cones) | #008E8D | 0.044 |
| Achromatopsia (no color) | #797979 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00859E
#00859E
oklch(56.9% 0.102 217.2)
- #AA604A
#AA604A
oklch(56.9% 0.102 37.4)
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 #00859E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Blue #01889F ΔE 0.009
- Ocean #017B92 ΔE 0.032
- Blue NCS #118AB2 ΔE 0.033
- Dark Cyan #008B8B ΔE 0.040
- Cerulean #457B9D ΔE 0.041
- Teal #008080 ΔE 0.046
- Teal Green #0A9396 ΔE 0.048
- Nice Blue #107AB0 ΔE 0.049
Use #00859E 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.