#42645A
Closest named color: Dark Green Blue (#1F6357). oklch(47.4% 0.043 174), rgb(66, 100, 90).
Aa
White text reads best on this color (6.55:1).
About this color
#42645A is a medium-dark, muted teal or cyan. In OKLCH its lightness is 47%, its chroma 0.043 and its hue 174°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.034 away. White text reads best on it, at 6.55:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.20:1 |
| White text | 6.55:1 |
Values
| HEX | #42645A |
| RGB | rgb(66, 100, 90) |
| HSL | hsl(162, 20%, 33%) |
| OKLCH | oklch(47.4% 0.043 174) |
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 #42645A | 6.55:1 | AA | Lc -87.5 | Fine for body text |
| Black text on #42645A | 3.20:1 | AA large text | Lc 21.6 | Dividers and decoration only |
| #42645A text on white | 6.55:1 | AA | Lc 82.4 | Fine for body text |
| #42645A text on black | 3.20:1 | AA large text | Lc -19.5 | 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 700.
-
Step 50
50
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E6EBE9
oklch(93.6% 0.006 170.4)
-
Step 200
200
#D2DCD8
oklch(88.6% 0.012 170.2)
-
Step 300
300
#B4C5BF
oklch(80.9% 0.02 172.6)
-
Step 400
400
#8CA89F
oklch(70.8% 0.034 173.9)
-
Step 500
500
#6F9287
oklch(63% 0.042 173.6)
-
Step 600
600
#577C71
oklch(55.5% 0.045 174.2)
-
Step 700
700 (this color)
#42645A
oklch(47.4% 0.043 174)
-
Step 800
800
#3A564D
oklch(42.8% 0.037 172.5)
-
Step 900
900
#324740
oklch(37.8% 0.029 172.1)
-
Step 950
950
#1E2926
oklch(26.9% 0.016 176.5)
#42645A 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) | #62605A | 0.045 |
| Deuteranopia (no green cones) | #5C5B5B | 0.044 |
| Tritanopia (no blue cones) | #396561 | 0.013 |
| Achromatopsia (no color) | #5D5D5D | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42645A
#42645A
oklch(47.4% 0.043 174)
- #70525D
#70525D
oklch(47.4% 0.043 355.1)
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 #42645A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.034
- Dark Aqua #05696B ΔE 0.043
- Slate #516572 ΔE 0.045
- Dark Aquamarine #017371 ΔE 0.055
- Petrol #005F6A ΔE 0.056
- Deep Turquoise #017374 ΔE 0.057
- Dim Gray #696969 ΔE 0.063
- YInMn Blue #415A77 ΔE 0.065
Use #42645A 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.