#00665D
Closest named color: Dark Green Blue (#1F6357). oklch(45.9% 0.081 184.4), rgb(0, 102, 93).
Aa
White text reads best on this color (6.86:1).
About this color
#00665D is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 46%, its chroma 0.081 and its hue 184°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.014 away. White text reads best on it, at 6.86:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.05:1 |
| White text | 6.86:1 |
Values
| HEX | #00665D |
| RGB | rgb(0, 102, 93) |
| HSL | hsl(175, 100%, 20%) |
| OKLCH | oklch(45.9% 0.081 184.4) |
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 #00665D | 6.86:1 | AA | Lc -88.2 | Fine for body text |
| Black text on #00665D | 3.05:1 | AA large text | Lc 20.8 | Dividers and decoration only |
| #00665D text on white | 6.86:1 | AA | Lc 83.2 | Fine for body text |
| #00665D text on black | 3.05:1 | AA large text | Lc -18.7 | 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
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E0EDEB
oklch(93.6% 0.014 185.9)
-
Step 200
200
#C7DFDB
oklch(88.5% 0.026 184.7)
-
Step 300
300
#9FCBC4
oklch(80.9% 0.047 184.4)
-
Step 400
400
#66B0A6
oklch(70.6% 0.076 184.6)
-
Step 500
500
#329C90
oklch(63% 0.096 184.3)
-
Step 600
600
#00867A
oklch(55.7% 0.099 183.9)
-
Step 700
700
#007067
oklch(49% 0.086 185.2)
-
Step 800
800 (this color)
#00665D
oklch(45.9% 0.081 184.4)
-
Step 900
900
#094C46
oklch(37.6% 0.063 185.5)
-
Step 950
950
#0A2D29
oklch(27.1% 0.04 184.5)
#00665D 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) | #605F5D | 0.086 |
| Deuteranopia (no green cones) | #54575E | 0.080 |
| Tritanopia (no blue cones) | #006863 | 0.010 |
| Achromatopsia (no color) | #5A5A5A | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00665D
#00665D
oklch(45.9% 0.081 184.4)
- #7D4352
#7D4352
oklch(45.8% 0.082 4.2)
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 #00665D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.014
- Dark Aqua #05696B ΔE 0.023
- Petrol #005F6A ΔE 0.036
- Dark Aquamarine #017371 ΔE 0.046
- Deep Turquoise #017374 ΔE 0.048
- Spruce #0A5F38 ΔE 0.056
- Deep Teal #00555A ΔE 0.056
- Pine #2B5D34 ΔE 0.059
Use #00665D 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.