#374593
Closest named color: Blueberry (#464196). oklch(42.3% 0.129 272.1), rgb(55, 69, 147).
Aa
White text reads best on this color (8.62:1).
About this color
#374593 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.129 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.024 away. White text reads best on it, at 8.62:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.129) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.43:1 |
| White text | 8.62:1 |
Values
| HEX | #374593 |
| RGB | rgb(55, 69, 147) |
| HSL | hsl(231, 46%, 40%) |
| OKLCH | oklch(42.3% 0.129 272.1) |
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 #374593 | 8.62:1 | AAA | Lc -93.9 | Preferred for body text |
| Black text on #374593 | 2.43:1 | Fails | Lc 14.7 | Not readable |
| #374593 text on white | 8.62:1 | AAA | Lc 89.3 | Fine for body text |
| #374593 text on black | 2.43:1 | Fails | Lc -12.9 | Not readable |
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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4E9F9
oklch(93.5% 0.022 272.1)
-
Step 200
200
#CFD8F6
oklch(88.5% 0.042 272.3)
-
Step 300
300
#AFBEF2
oklch(80.8% 0.076 272.1)
-
Step 400
400
#879BEC
oklch(70.7% 0.121 272.4)
-
Step 500
500
#6A80E5
oklch(63% 0.153 272.1)
-
Step 600
600
#5367D3
oklch(55.5% 0.167 272)
-
Step 700
700
#4455B7
oklch(49.1% 0.155 272)
-
Step 800
800 (this color)
#374593
oklch(42.3% 0.129 272.1)
-
Step 900
900
#303C76
oklch(37.8% 0.1 272)
-
Step 950
950
#1C2345
oklch(26.9% 0.064 272.7)
#374593 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) | #175096 | 0.038 |
| Deuteranopia (no green cones) | #004891 | 0.042 |
| Tritanopia (no blue cones) | #005765 | 0.110 |
| Achromatopsia (no color) | #4C4C4C | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #374593
#374593
oklch(42.3% 0.129 272.1)
- #5F4C00
#5F4C00
oklch(42.4% 0.087 92.3)
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 #374593, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.024
- Cobalt #1E488F ΔE 0.028
- Dark Slate Blue #483D8B ΔE 0.032
- Dusk Blue #26538D ΔE 0.043
- Light Navy #155084 ΔE 0.051
- Twilight #4E518B ΔE 0.053
- Sapphire #2138AB ΔE 0.059
- Twilight Blue #0A437A ΔE 0.061
Use #374593 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.