#1B6396
Closest named color: Peacock Blue (#016795). oklch(48.2% 0.107 244.7), rgb(27, 99, 150).
Aa
White text reads best on this color (6.41:1).
About this color
#1B6396 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.107 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Peacock Blue (#016795), ΔE 0.014 away. White text reads best on it, at 6.41:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Peacock Blue (#016795) |
| Black text | 3.27:1 |
| White text | 6.41:1 |
Values
| HEX | #1B6396 |
| RGB | rgb(27, 99, 150) |
| HSL | hsl(205, 69%, 35%) |
| OKLCH | oklch(48.2% 0.107 244.7) |
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 #1B6396 | 6.41:1 | AA | Lc -86.6 | Fine for body text |
| Black text on #1B6396 | 3.27:1 | AA large text | Lc 22.5 | Dividers and decoration only |
| #1B6396 text on white | 6.41:1 | AA | Lc 81.5 | Fine for body text |
| #1B6396 text on black | 3.27:1 | AA large text | Lc -20.4 | 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
#CADCEB
oklch(88.6% 0.028 243.1)
-
Step 300
300
#A5C5E0
oklch(80.9% 0.052 243.9)
-
Step 400
400
#74A6D1
oklch(70.6% 0.083 245.3)
-
Step 500
500
#4D90C5
oklch(63.2% 0.105 244.5)
-
Step 600
600
#2D79B2
oklch(55.6% 0.115 244.9)
-
Step 700
700 (this color)
#1B6396
oklch(48.2% 0.107 244.7)
-
Step 800
800
#1C537C
oklch(42.7% 0.089 244.9)
-
Step 900
900
#1E4564
oklch(37.8% 0.069 245.1)
-
Step 950
950
#12293A
oklch(27.1% 0.043 242.6)
#1B6396 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) | #4B6598 | 0.045 |
| Deuteranopia (no green cones) | #3A5A95 | 0.033 |
| Tritanopia (no blue cones) | #006F75 | 0.074 |
| Achromatopsia (no color) | #5F5F5F | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B6396
#1B6396
oklch(48.2% 0.107 244.7)
- #874F04
#874F04
oklch(48.2% 0.107 64.4)
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 #1B6396, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Peacock Blue #016795 ΔE 0.014
- Denim #3B638C ΔE 0.029
- Denim Blue #3B5B92 ΔE 0.031
- Light Navy Blue #2E5A88 ΔE 0.031
- Dusky Blue #475F94 ΔE 0.039
- Ocean Blue #03719C ΔE 0.040
- Dusk Blue #26538D ΔE 0.046
- Mid Blue #276AB3 ΔE 0.050
Use #1B6396 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.