#00644F
Closest named color: Dark Green Blue (#1F6357). oklch(44.8% 0.087 171.8), rgb(0, 100, 79).
Aa
White text reads best on this color (7.15:1).
About this color
#00644F is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 45%, its chroma 0.087 and its hue 172°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.020 away. White text reads best on it, at 7.15:1.
| Hue family | Teals and cyans |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.93:1 |
| White text | 7.15:1 |
Values
| HEX | #00644F |
| RGB | rgb(0, 100, 79) |
| HSL | hsl(167, 100%, 20%) |
| OKLCH | oklch(44.8% 0.087 171.8) |
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 #00644F | 7.15:1 | AAA | Lc -89.2 | Fine for body text |
| Black text on #00644F | 2.93:1 | Fails | Lc 19.7 | Dividers and decoration only |
| #00644F text on white | 7.15:1 | AAA | Lc 84.3 | Fine for body text |
| #00644F text on black | 2.93:1 | Fails | Lc -17.7 | Dividers and decoration only |
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 800.
-
Step 50
50
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E1EDE9
oklch(93.6% 0.014 174.2)
-
Step 200
200
#C7E0D7
oklch(88.6% 0.029 172)
-
Step 300
300
#A0CCBD
oklch(81% 0.051 172.1)
-
Step 400
400
#68B19B
oklch(70.6% 0.081 172.5)
-
Step 500
500
#369E82
oklch(63.2% 0.104 171.6)
-
Step 600
600
#00876C
oklch(55.5% 0.108 172.1)
-
Step 700
700
#00725A
oklch(49.2% 0.096 171.5)
-
Step 800
800 (this color)
#00644F
oklch(44.8% 0.087 171.8)
-
Step 900
900
#0C4D3D
oklch(37.7% 0.068 171.6)
-
Step 950
950
#0B2D24
oklch(26.9% 0.043 172.4)
#00644F 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) | #605C4E | 0.089 |
| Deuteranopia (no green cones) | #555450 | 0.086 |
| Tritanopia (no blue cones) | #00655E | 0.024 |
| Achromatopsia (no color) | #585858 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00644F
#00644F
oklch(44.8% 0.087 171.8)
- #793F5A
#793F5A
oklch(44.9% 0.087 351.9)
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 #00644F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.020
- Spruce #0A5F38 ΔE 0.034
- Pine #2B5D34 ΔE 0.039
- Dark Aqua #05696B ΔE 0.045
- Petrol #005F6A ΔE 0.053
- Deep Teal #00555A ΔE 0.059
- Dark Blue Green #005249 ΔE 0.059
- Dark Aquamarine #017371 ΔE 0.062
Use #00644F 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.