#1D619F
Closest named color: Peacock Blue (#016795). oklch(48.3% 0.12 250.3), rgb(29, 97, 159).
Aa
White text reads best on this color (6.43:1).
About this color
#1D619F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.120 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Peacock Blue (#016795), ΔE 0.028 away. White text reads best on it, at 6.43:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | Peacock Blue (#016795) |
| Black text | 3.26:1 |
| White text | 6.43:1 |
Values
| HEX | #1D619F |
| RGB | rgb(29, 97, 159) |
| HSL | hsl(209, 69%, 37%) |
| OKLCH | oklch(48.3% 0.12 250.3) |
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 #1D619F | 6.43:1 | AA | Lc -86.7 | Fine for body text |
| Black text on #1D619F | 3.26:1 | AA large text | Lc 22.5 | Dividers and decoration only |
| #1D619F text on white | 6.43:1 | AA | Lc 81.6 | Fine for body text |
| #1D619F text on black | 3.26:1 | AA large text | Lc -20.3 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF5
oklch(93.6% 0.017 250.8)
-
Step 200
200
#CADBEE
oklch(88.5% 0.032 251.1)
-
Step 300
300
#A5C4E5
oklch(80.9% 0.058 250.2)
-
Step 400
400
#74A5D9
oklch(70.8% 0.093 250.7)
-
Step 500
500
#4D8ECE
oklch(63.2% 0.118 249.9)
-
Step 600
600
#2E76BB
oklch(55.5% 0.129 250.6)
-
Step 700
700 (this color)
#1D619F
oklch(48.3% 0.12 250.3)
-
Step 800
800
#1D5183
oklch(42.7% 0.1 250.7)
-
Step 900
900
#1E4469
oklch(37.8% 0.077 250)
-
Step 950
950
#12283D
oklch(27% 0.048 249)
#1D619F 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) | #4365A2 | 0.037 |
| Deuteranopia (no green cones) | #2F599E | 0.024 |
| Tritanopia (no blue cones) | #007078 | 0.088 |
| Achromatopsia (no color) | #5E5E5E | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D619F
#1D619F
oklch(48.3% 0.12 250.3)
- #835200
#835200
oklch(48.3% 0.104 70.2)
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 #1D619F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Peacock Blue #016795 ΔE 0.028
- Denim Blue #3B5B92 ΔE 0.031
- Light Navy Blue #2E5A88 ΔE 0.039
- Mid Blue #276AB3 ΔE 0.040
- Denim #3B638C ΔE 0.040
- Dusky Blue #475F94 ΔE 0.040
- Dusk Blue #26538D ΔE 0.045
- Ocean Blue #03719C ΔE 0.048
Use #1D619F 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.