#1B5F93
Closest named color: Light Navy Blue (#2E5A88). oklch(47.1% 0.107 246.4), rgb(27, 95, 147).
Aa
White text reads best on this color (6.76:1).
About this color
#1B5F93 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.107 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.022 away. White text reads best on it, at 6.76:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 3.10:1 |
| White text | 6.76:1 |
Values
| HEX | #1B5F93 |
| RGB | rgb(27, 95, 147) |
| HSL | hsl(206, 69%, 34%) |
| OKLCH | oklch(47.1% 0.107 246.4) |
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 #1B5F93 | 6.76:1 | AA | Lc -88.0 | Fine for body text |
| Black text on #1B5F93 | 3.10:1 | AA large text | Lc 21.1 | Dividers and decoration only |
| #1B5F93 text on white | 6.76:1 | AA | Lc 82.9 | Fine for body text |
| #1B5F93 text on black | 3.10:1 | AA large text | Lc -19.0 | 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
#E2EBF4
oklch(93.6% 0.016 248)
-
Step 200
200
#CADBEB
oklch(88.4% 0.029 246.5)
-
Step 300
300
#A6C5E1
oklch(81% 0.052 245.8)
-
Step 400
400
#75A6D2
oklch(70.7% 0.083 246.4)
-
Step 500
500
#4F8FC6
oklch(63.1% 0.106 246.4)
-
Step 600
600
#3078B2
oklch(55.5% 0.115 246.4)
-
Step 700
700 (this color)
#1B5F93
oklch(47.1% 0.107 246.4)
-
Step 800
800
#1F537C
oklch(42.8% 0.087 245.8)
-
Step 900
900
#1F4564
oklch(37.8% 0.069 245.7)
-
Step 950
950
#13283B
oklch(26.9% 0.045 247.5)
#1B5F93 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) | #476195 | 0.042 |
| Deuteranopia (no green cones) | #355692 | 0.030 |
| Tritanopia (no blue cones) | #006C72 | 0.077 |
| Achromatopsia (no color) | #5B5B5B | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B5F93
#1B5F93
oklch(47.1% 0.107 246.4)
- #814D00
#814D00
oklch(47% 0.104 66.7)
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 #1B5F93, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.022
- Peacock Blue #016795 ΔE 0.023
- Denim Blue #3B5B92 ΔE 0.027
- Denim #3B638C ΔE 0.033
- Dusk Blue #26538D ΔE 0.034
- Dusky Blue #475F94 ΔE 0.041
- Deep Sea Blue #015482 ΔE 0.044
- Light Navy #155084 ΔE 0.049
Use #1B5F93 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.