#375765
Closest named color: YInMn Blue (#415A77). oklch(43.8% 0.044 227.4), rgb(55, 87, 101).
Aa
White text reads best on this color (7.73:1).
About this color
#375765 is a dark, muted teal or cyan. In OKLCH its lightness is 44%, its chroma 0.044 and its hue 227°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.033 away. White text reads best on it, at 7.73:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.71:1 |
| White text | 7.73:1 |
Values
| HEX | #375765 |
| RGB | rgb(55, 87, 101) |
| HSL | hsl(198, 29%, 31%) |
| OKLCH | oklch(43.8% 0.044 227.4) |
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 #375765 | 7.73:1 | AAA | Lc -91.6 | Preferred for body text |
| Black text on #375765 | 2.71:1 | Fails | Lc 17.2 | Dividers and decoration only |
| #375765 text on white | 7.73:1 | AAA | Lc 86.8 | Fine for body text |
| #375765 text on black | 2.71:1 | Fails | Lc -15.3 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBEE
oklch(93.6% 0.008 228.9)
-
Step 200
200
#D0DBE1
oklch(88.5% 0.015 231.2)
-
Step 300
300
#B0C4CE
oklch(80.8% 0.026 229.2)
-
Step 400
400
#86A6B5
oklch(70.6% 0.041 228.1)
-
Step 500
500
#6790A3
oklch(63% 0.053 228.4)
-
Step 600
600
#4E7A8E
oklch(55.5% 0.058 228.5)
-
Step 700
700
#3F6778
oklch(49.1% 0.053 226.9)
-
Step 800
800 (this color)
#375765
oklch(43.8% 0.044 227.4)
-
Step 900
900
#2E4550
oklch(37.6% 0.034 229.3)
-
Step 950
950
#1B292F
oklch(27.1% 0.022 226.4)
#375765 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) | #505666 | 0.034 |
| Deuteranopia (no green cones) | #495065 | 0.031 |
| Tritanopia (no blue cones) | #245B5B | 0.031 |
| Achromatopsia (no color) | #535353 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #375765
#375765
oklch(43.8% 0.044 227.4)
- #674B3D
#674B3D
oklch(43.9% 0.044 47.7)
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 #375765, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.033
- Petrol #005F6A ΔE 0.038
- Dark Slate Gray #2F4F4F ΔE 0.042
- Deep Teal #00555A ΔE 0.046
- Dusty Grape #545775 ΔE 0.050
- Dark Green Blue #1F6357 ΔE 0.055
- Light Navy Blue #2E5A88 ΔE 0.057
- Dark Grey Blue #29465B ΔE 0.058
Use #375765 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.