#2F4978
Closest named color: Light Navy (#155084). oklch(40.8% 0.086 261.4), rgb(47, 73, 120).
Aa
White text reads best on this color (8.95:1).
About this color
#2F4978 is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.086 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.031 away. White text reads best on it, at 8.95:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.34:1 |
| White text | 8.95:1 |
Values
| HEX | #2F4978 |
| RGB | rgb(47, 73, 120) |
| HSL | hsl(219, 44%, 33%) |
| OKLCH | oklch(40.8% 0.086 261.4) |
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 #2F4978 | 8.95:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #2F4978 | 2.34:1 | Fails | Lc 13.6 | Not readable |
| #2F4978 text on white | 8.95:1 | AAA | Lc 90.4 | Preferred for body text |
| #2F4978 text on black | 2.34:1 | Fails | Lc -11.9 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E5EAF4
oklch(93.6% 0.015 264.5)
-
Step 200
200
#CFDAEC
oklch(88.5% 0.028 260.3)
-
Step 300
300
#AFC1E2
oklch(80.8% 0.051 262.6)
-
Step 400
400
#85A1D3
oklch(70.7% 0.08 261.8)
-
Step 500
500
#6689C7
oklch(63% 0.102 261.4)
-
Step 600
600
#4E72B4
oklch(55.6% 0.111 261.7)
-
Step 700
700
#3F609B
oklch(49.2% 0.103 261.3)
-
Step 800
800 (this color)
#2F4978
oklch(40.8% 0.086 261.4)
-
Step 900
900
#2D4165
oklch(37.6% 0.067 261.5)
-
Step 950
950
#1B263B
oklch(26.9% 0.042 262.7)
#2F4978 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) | #354D7A | 0.015 |
| Deuteranopia (no green cones) | #2C4677 | 0.010 |
| Tritanopia (no blue cones) | #00535A | 0.075 |
| Achromatopsia (no color) | #494949 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F4978
#2F4978
oklch(40.8% 0.086 261.4)
- #614400
#614400
oklch(40.8% 0.084 80.9)
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 #2F4978, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.031
- Twilight Blue #0A437A ΔE 0.039
- Deep Sea Blue #015482 ΔE 0.040
- Dusk Blue #26538D ΔE 0.041
- Cobalt #1E488F ΔE 0.042
- Dark Grey Blue #29465B ΔE 0.050
- Light Navy Blue #2E5A88 ΔE 0.053
- Dusk #4E5481 ΔE 0.058
Use #2F4978 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.