#1F6595
Closest named color: Peacock Blue (#016795). oklch(48.8% 0.103 243.4), rgb(31, 101, 149).
Aa
White text reads best on this color (6.26:1).
About this color
#1F6595 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.103 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Peacock Blue (#016795), ΔE 0.011 away. White text reads best on it, at 6.26:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.103) |
| Temperature | cool |
| Nearest name | Peacock Blue (#016795) |
| Black text | 3.35:1 |
| White text | 6.26:1 |
Values
| HEX | #1F6595 |
| RGB | rgb(31, 101, 149) |
| HSL | hsl(204, 66%, 35%) |
| OKLCH | oklch(48.8% 0.103 243.4) |
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 #1F6595 | 6.26:1 | AA | Lc -86.0 | Fine for body text |
| Black text on #1F6595 | 3.35:1 | AA large text | Lc 23.2 | Dividers and decoration only |
| #1F6595 text on white | 6.26:1 | AA | Lc 80.8 | Fine for body text |
| #1F6595 text on black | 3.35:1 | AA large text | Lc -21.0 | 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 700.
-
Step 50
50
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF3
oklch(93.6% 0.015 244.7)
-
Step 200
200
#CADCEA
oklch(88.5% 0.027 241.2)
-
Step 300
300
#A6C5DF
oklch(80.9% 0.05 243.7)
-
Step 400
400
#75A7CF
oklch(70.8% 0.079 243.3)
-
Step 500
500
#4E90C2
oklch(63.1% 0.101 243.3)
-
Step 600
600
#2E79AF
oklch(55.5% 0.111 243.8)
-
Step 700
700 (this color)
#1F6595
oklch(48.8% 0.103 243.4)
-
Step 800
800
#1D537A
oklch(42.6% 0.086 243.9)
-
Step 900
900
#1E4562
oklch(37.6% 0.067 243.4)
-
Step 950
950
#132939
oklch(27.1% 0.041 242)
#1F6595 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) | #4F6697 | 0.047 |
| Deuteranopia (no green cones) | #3E5B94 | 0.036 |
| Tritanopia (no blue cones) | #007176 | 0.072 |
| Achromatopsia (no color) | #606060 | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F6595
#1F6595
oklch(48.8% 0.103 243.4)
- #885112
#885112
oklch(48.8% 0.103 63.2)
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 #1F6595, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Peacock Blue #016795 ΔE 0.011
- Denim #3B638C ΔE 0.025
- Denim Blue #3B5B92 ΔE 0.034
- Light Navy Blue #2E5A88 ΔE 0.034
- Ocean Blue #03719C ΔE 0.034
- Dusky Blue #475F94 ΔE 0.038
- Sea Blue #047495 ΔE 0.045
- Muted Blue #3B719F ΔE 0.046
Use #1F6595 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.