#374B96
Closest named color: Blueberry (#464196). oklch(43.8% 0.125 269.4), rgb(55, 75, 150).
Aa
White text reads best on this color (8.04:1).
About this color
#374B96 is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.125 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.031 away. White text reads best on it, at 8.04:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.60:1 |
| White text | 8.04:1 |
Values
| HEX | #374B96 |
| RGB | rgb(55, 75, 150) |
| HSL | hsl(227, 46%, 40%) |
| OKLCH | oklch(43.8% 0.125 269.4) |
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 #374B96 | 8.04:1 | AAA | Lc -92.3 | Preferred for body text |
| Black text on #374B96 | 2.60:1 | Fails | Lc 16.4 | Dividers and decoration only |
| #374B96 text on white | 8.04:1 | AAA | Lc 87.6 | Fine for body text |
| #374B96 text on black | 2.60:1 | Fails | Lc -14.5 | 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
#E4EAF9
oklch(93.7% 0.021 268.4)
-
Step 200
200
#CED9F5
oklch(88.6% 0.04 268.5)
-
Step 300
300
#AEBFF1
oklch(80.9% 0.073 270.1)
-
Step 400
400
#839DEA
oklch(70.8% 0.117 269.1)
-
Step 500
500
#6682E3
oklch(63.1% 0.149 269.6)
-
Step 600
600
#4E69D1
oklch(55.5% 0.163 269.5)
-
Step 700
700
#3F57B5
oklch(49% 0.151 269.3)
-
Step 800
800 (this color)
#374B96
oklch(43.8% 0.125 269.4)
-
Step 900
900
#2D3D75
oklch(37.7% 0.098 269.3)
-
Step 950
950
#1A2444
oklch(26.9% 0.061 268.9)
#374B96 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) | #245599 | 0.030 |
| Deuteranopia (no green cones) | #104C94 | 0.034 |
| Tritanopia (no blue cones) | #005C69 | 0.107 |
| Achromatopsia (no color) | #505050 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #374B96
#374B96
oklch(43.8% 0.125 269.4)
- #654F00
#654F00
oklch(43.8% 0.09 90.2)
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 #374B96, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.031
- Cobalt #1E488F ΔE 0.031
- Dusk Blue #26538D ΔE 0.032
- Twilight #4E518B ΔE 0.043
- Dark Slate Blue #483D8B ΔE 0.043
- Light Navy #155084 ΔE 0.047
- Denim Blue #3B5B92 ΔE 0.048
- Light Navy Blue #2E5A88 ΔE 0.053
Use #374B96 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.