#1F416E
Closest named color: Twilight Blue (#0A437A). oklch(37.4% 0.087 256.2), rgb(31, 65, 110).
Aa
White text reads best on this color (10.29:1).
About this color
#1F416E is a dark, moderately saturated blue. In OKLCH its lightness is 37%, its chroma 0.087 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.023 away. White text reads best on it, at 10.29:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.03:1 |
| White text | 10.29:1 |
Values
| HEX | #1F416E |
| RGB | rgb(31, 65, 110) |
| HSL | hsl(214, 56%, 28%) |
| OKLCH | oklch(37.4% 0.087 256.2) |
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 #1F416E | 10.29:1 | AAA | Lc -97.7 | Preferred for body text |
| Black text on #1F416E | 2.03:1 | Fails | Lc 10.3 | Not readable |
| #1F416E text on white | 10.29:1 | AAA | Lc 93.7 | Preferred for body text |
| #1F416E text on black | 2.03:1 | Fails | Lc -8.9 | 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 900.
-
Step 50
50
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF7
oklch(93.7% 0.019 255.5)
-
Step 200
200
#CADBF2
oklch(88.6% 0.037 256)
-
Step 300
300
#A6C3EB
oklch(80.9% 0.065 256.5)
-
Step 400
400
#75A3E1
oklch(70.7% 0.104 256.1)
-
Step 500
500
#508AD9
oklch(63% 0.134 256.6)
-
Step 600
600
#3373C6
oklch(55.7% 0.145 256.2)
-
Step 700
700
#2560AB
oklch(49.1% 0.134 256.1)
-
Step 800
800
#204F8B
oklch(42.8% 0.112 256)
-
Step 900
900 (this color)
#1F416E
oklch(37.4% 0.087 256.2)
-
Step 950
950
#132741
oklch(27% 0.055 255.7)
#1F416E 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) | #2D4470 | 0.020 |
| Deuteranopia (no green cones) | #213D6D | 0.012 |
| Tritanopia (no blue cones) | #004B52 | 0.068 |
| Achromatopsia (no color) | #404040 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F416E
#1F416E
oklch(37.4% 0.087 256.2)
- #583A00
#583A00
oklch(37.4% 0.078 76.3)
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 #1F416E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.023
- Marine Blue #01386A ΔE 0.038
- Dark Grey Blue #29465B ΔE 0.041
- Prussian Blue #1D3557 ΔE 0.050
- Light Navy #155084 ΔE 0.053
- Charcoal #264653 ΔE 0.054
- Cobalt #1E488F ΔE 0.057
- Dark Blue Grey #1F3B4D ΔE 0.057
Use #1F416E 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.