#375870
Closest named color: YInMn Blue (#415A77). oklch(44.5% 0.055 241.2), rgb(55, 88, 112).
Aa
White text reads best on this color (7.52:1).
About this color
#375870 is a dark, muted blue. In OKLCH its lightness is 45%, its chroma 0.055 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.018 away. White text reads best on it, at 7.52:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.79:1 |
| White text | 7.52:1 |
Values
| HEX | #375870 |
| RGB | rgb(55, 88, 112) |
| HSL | hsl(205, 34%, 33%) |
| OKLCH | oklch(44.5% 0.055 241.2) |
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 #375870 | 7.52:1 | AAA | Lc -90.9 | Preferred for body text |
| Black text on #375870 | 2.79:1 | Fails | Lc 18.0 | Dividers and decoration only |
| #375870 text on white | 7.52:1 | AAA | Lc 86.1 | Fine for body text |
| #375870 text on black | 2.79:1 | Fails | Lc -16.0 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E5EBF0
oklch(93.7% 0.009 242.8)
-
Step 200
200
#CFDBE4
oklch(88.5% 0.018 240)
-
Step 300
300
#AFC4D4
oklch(81% 0.032 240.7)
-
Step 400
400
#84A5BE
oklch(70.6% 0.052 241.1)
-
Step 500
500
#658FAE
oklch(63.1% 0.066 241.1)
-
Step 600
600
#4B799A
oklch(55.7% 0.072 241)
-
Step 700
700
#3C6683
oklch(49.2% 0.066 240.1)
-
Step 800
800 (this color)
#375870
oklch(44.5% 0.055 241.2)
-
Step 900
900
#2C4557
oklch(37.8% 0.044 240.7)
-
Step 950
950
#1A2833
oklch(26.9% 0.028 242.7)
#375870 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) | #4E5871 | 0.030 |
| Deuteranopia (no green cones) | #465270 | 0.025 |
| Tritanopia (no blue cones) | #1C5E60 | 0.045 |
| Achromatopsia (no color) | #545454 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #375870
#375870
oklch(44.5% 0.055 241.2)
- #6B4D34
#6B4D34
oklch(44.6% 0.055 60.5)
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 #375870, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.018
- Light Navy Blue #2E5A88 ΔE 0.039
- Dusty Grape #545775 ΔE 0.041
- Petrol #005F6A ΔE 0.042
- Dusk #4E5481 ΔE 0.046
- Deep Sea Blue #015482 ΔE 0.050
- Denim #3B638C ΔE 0.051
- Slate #516572 ΔE 0.055
Use #375870 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.