#314F78
Closest named color: Light Navy (#155084). oklch(42.4% 0.078 256.5), rgb(49, 79, 120).
Aa
White text reads best on this color (8.33:1).
About this color
#314F78 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.078 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.029 away. White text reads best on it, at 8.33:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.52:1 |
| White text | 8.33:1 |
Values
| HEX | #314F78 |
| RGB | rgb(49, 79, 120) |
| HSL | hsl(215, 42%, 33%) |
| OKLCH | oklch(42.4% 0.078 256.5) |
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 #314F78 | 8.33:1 | AAA | Lc -93.2 | Preferred for body text |
| Black text on #314F78 | 2.52:1 | Fails | Lc 15.4 | Dividers and decoration only |
| #314F78 text on white | 8.33:1 | AAA | Lc 88.6 | Fine for body text |
| #314F78 text on black | 2.52:1 | Fails | Lc -13.6 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF3
oklch(93.5% 0.014 258.3)
-
Step 200
200
#CFDAEA
oklch(88.5% 0.025 257.6)
-
Step 300
300
#AEC2DE
oklch(80.8% 0.045 256.8)
-
Step 400
400
#83A3CE
oklch(70.7% 0.073 255.9)
-
Step 500
500
#648BC1
oklch(63% 0.093 256.7)
-
Step 600
600
#4B75AE
oklch(55.7% 0.101 256.4)
-
Step 700
700
#3C6295
oklch(49.2% 0.093 256.2)
-
Step 800
800 (this color)
#314F78
oklch(42.4% 0.078 256.5)
-
Step 900
900
#2C4261
oklch(37.6% 0.06 257)
-
Step 950
950
#1A2739
oklch(27% 0.038 256.7)
#314F78 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) | #3E527A | 0.020 |
| Deuteranopia (no green cones) | #354B77 | 0.012 |
| Tritanopia (no blue cones) | #00585E | 0.068 |
| Achromatopsia (no color) | #4E4E4E | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #314F78
#314F78
oklch(42.4% 0.078 256.5)
- #664814
#664814
oklch(42.5% 0.078 77)
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 #314F78, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.029
- Deep Sea Blue #015482 ΔE 0.033
- Dusk Blue #26538D ΔE 0.035
- Light Navy Blue #2E5A88 ΔE 0.037
- YInMn Blue #415A77 ΔE 0.042
- Dusk #4E5481 ΔE 0.046
- Cobalt #1E488F ΔE 0.051
- Twilight #4E518B ΔE 0.052
Use #314F78 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.