#1F4467
Closest named color: Dark Grey Blue (#29465B). oklch(37.7% 0.074 249.2), rgb(31, 68, 103).
Aa
White text reads best on this color (10.09:1).
About this color
#1F4467 is a dark, moderately saturated blue. In OKLCH its lightness is 38%, its chroma 0.074 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.025 away. White text reads best on it, at 10.09:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.08:1 |
| White text | 10.09:1 |
Values
| HEX | #1F4467 |
| RGB | rgb(31, 68, 103) |
| HSL | hsl(209, 54%, 26%) |
| OKLCH | oklch(37.7% 0.074 249.2) |
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 #1F4467 | 10.09:1 | AAA | Lc -97.3 | Preferred for body text |
| Black text on #1F4467 | 2.08:1 | Fails | Lc 10.7 | Not readable |
| #1F4467 text on white | 10.09:1 | AAA | Lc 93.2 | Preferred for body text |
| #1F4467 text on black | 2.08:1 | Fails | Lc -9.3 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF4
oklch(93.6% 0.016 248)
-
Step 200
200
#CADBED
oklch(88.4% 0.031 249.7)
-
Step 300
300
#A6C4E3
oklch(80.9% 0.055 249.4)
-
Step 400
400
#75A5D6
oklch(70.7% 0.089 249.7)
-
Step 500
500
#4F8ECB
oklch(63.1% 0.113 249.4)
-
Step 600
600
#3077B8
oklch(55.6% 0.123 249.4)
-
Step 700
700
#22649E
oklch(49.1% 0.114 249)
-
Step 800
800
#1E5280
oklch(42.8% 0.094 248.7)
-
Step 900
900 (this color)
#1F4467
oklch(37.7% 0.074 249.2)
-
Step 950
950
#13283C
oklch(27% 0.046 248.8)
#1F4467 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) | #354669 | 0.028 |
| Deuteranopia (no green cones) | #2B3F66 | 0.018 |
| Tritanopia (no blue cones) | #004C51 | 0.056 |
| Achromatopsia (no color) | #424242 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F4467
#1F4467
oklch(37.7% 0.074 249.2)
- #5B3A0D
#5B3A0D
oklch(37.9% 0.074 69.5)
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 #1F4467, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.025
- Twilight Blue #0A437A ΔE 0.035
- Charcoal #264653 ΔE 0.038
- Marine Blue #01386A ΔE 0.047
- Dark Blue Grey #1F3B4D ΔE 0.048
- Prussian Blue #1D3557 ΔE 0.051
- Light Navy #155084 ΔE 0.055
- Midnight Green #073B4C ΔE 0.057
Use #1F4467 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.