#00644A
Closest named color: Spruce (#0A5F38). oklch(44.7% 0.091 167.5), rgb(0, 100, 74).
Aa
White text reads best on this color (7.18:1).
About this color
#00644A is a dark, moderately saturated green. In OKLCH its lightness is 45%, its chroma 0.091 and its hue 167°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Spruce (#0A5F38), ΔE 0.027 away. White text reads best on it, at 7.18:1.
| Hue family | Greens |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.091) |
| Temperature | in between |
| Nearest name | Spruce (#0A5F38) |
| Black text | 2.92:1 |
| White text | 7.18:1 |
Values
| HEX | #00644A |
| RGB | rgb(0, 100, 74) |
| HSL | hsl(164, 100%, 20%) |
| OKLCH | oklch(44.7% 0.091 167.5) |
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 #00644A | 7.18:1 | AAA | Lc -89.3 | Fine for body text |
| Black text on #00644A | 2.92:1 | Fails | Lc 19.6 | Dividers and decoration only |
| #00644A text on white | 7.18:1 | AAA | Lc 84.4 | Fine for body text |
| #00644A text on black | 2.92:1 | Fails | Lc -17.6 | 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
#F1F7F4
oklch(97.1% 0.007 164.9)
-
Step 100
100
#E1EDE8
oklch(93.6% 0.014 169.2)
-
Step 200
200
#C7E0D5
oklch(88.5% 0.03 167.4)
-
Step 300
300
#A0CCBA
oklch(80.9% 0.053 168.1)
-
Step 400
400
#69B296
oklch(70.8% 0.085 167.4)
-
Step 500
500
#369E7C
oklch(63% 0.109 167.5)
-
Step 600
600
#008866
oklch(55.6% 0.113 167.6)
-
Step 700
700
#007255
oklch(49% 0.1 167.6)
-
Step 800
800 (this color)
#00644A
oklch(44.7% 0.091 167.5)
-
Step 900
900
#0D4D3A
oklch(37.6% 0.07 167.9)
-
Step 950
950
#0B2D22
oklch(26.9% 0.044 168.3)
#00644A 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) | #615C49 | 0.091 |
| Deuteranopia (no green cones) | #56544C | 0.088 |
| Tritanopia (no blue cones) | #00645D | 0.031 |
| Achromatopsia (no color) | #575757 | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00644A
#00644A
oklch(44.7% 0.091 167.5)
- #783E5E
#783E5E
oklch(44.7% 0.091 347.1)
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 #00644A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Spruce #0A5F38 ΔE 0.027
- Dark Green Blue #1F6357 ΔE 0.027
- Pine #2B5D34 ΔE 0.034
- Dark Aqua #05696B ΔE 0.052
- Petrol #005F6A ΔE 0.060
- Dark Blue Green #005249 ΔE 0.061
- Deep Teal #00555A ΔE 0.064
- Dark Aquamarine #017371 ΔE 0.068
Use #00644A 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.