#376DC4
Closest named color: Mid Blue (#276AB3). oklch(54.3% 0.148 259.5), rgb(55, 109, 196).
Aa
White text reads best on this color (5.06:1).
About this color
#376DC4 is a medium-dark, vivid blue. In OKLCH its lightness is 54%, its chroma 0.148 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.031 away. White text reads best on it, at 5.06:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.148) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 4.14:1 |
| White text | 5.06:1 |
Values
| HEX | #376DC4 |
| RGB | rgb(55, 109, 196) |
| HSL | hsl(217, 56%, 49%) |
| OKLCH | oklch(54.3% 0.148 259.5) |
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 #376DC4 | 5.06:1 | AA | Lc -80.0 | Fine for body text |
| Black text on #376DC4 | 4.14:1 | AA large text | Lc 29.5 | Dividers and decoration only |
| #376DC4 text on white | 5.06:1 | AA | Lc 74.6 | Content text, not long reading |
| #376DC4 text on black | 4.14:1 | AA large text | Lc -27.1 | 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 600.
-
Step 50
50
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EAF7
oklch(93.5% 0.02 260.2)
-
Step 200
200
#CBDAF2
oklch(88.5% 0.037 259.8)
-
Step 300
300
#A8C2EC
oklch(80.9% 0.066 259.9)
-
Step 400
400
#79A1E3
oklch(70.6% 0.107 260.1)
-
Step 500
500
#5689DB
oklch(63.2% 0.136 259.5)
-
Step 600
600 (this color)
#376DC4
oklch(54.3% 0.148 259.5)
-
Step 700
700
#2D5EAD
oklch(49.1% 0.137 259.6)
-
Step 800
800
#264D8C
oklch(42.7% 0.114 259.6)
-
Step 900
900
#234170
oklch(37.7% 0.088 259.1)
-
Step 950
950
#152642
oklch(27% 0.057 259.9)
#376DC4 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) | #4275C7 | 0.026 |
| Deuteranopia (no green cones) | #2668C2 | 0.021 |
| Tritanopia (no blue cones) | #00818F | 0.116 |
| Achromatopsia (no color) | #6E6E6E | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #376DC4
#376DC4
oklch(54.3% 0.148 259.5)
- #926700
#926700
oklch(54.4% 0.113 79.9)
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 #376DC4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.031
- Windows Blue #3778BF ΔE 0.033
- French Blue #436BAD ΔE 0.036
- Royal Blue #4169E1 ΔE 0.048
- Flat Blue #3C73A8 ΔE 0.051
- Nice Blue #107AB0 ΔE 0.055
- Muted Blue #3B719F ΔE 0.062
- Dark Periwinkle #665FD1 ΔE 0.066
Use #376DC4 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.