#1765A5
Closest named color: Mid Blue (#276AB3). oklch(49.5% 0.125 248.9), rgb(23, 101, 165).
Aa
White text reads best on this color (6.10:1).
About this color
#1765A5 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.125 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.028 away. White text reads best on it, at 6.10:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.44:1 |
| White text | 6.10:1 |
Values
| HEX | #1765A5 |
| RGB | rgb(23, 101, 165) |
| HSL | hsl(207, 76%, 37%) |
| OKLCH | oklch(49.5% 0.125 248.9) |
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 #1765A5 | 6.10:1 | AA | Lc -85.2 | Fine for body text |
| Black text on #1765A5 | 3.44:1 | AA large text | Lc 24.1 | Dividers and decoration only |
| #1765A5 text on white | 6.10:1 | AA | Lc 80.0 | Fine for body text |
| #1765A5 text on black | 3.44:1 | AA large text | Lc -21.8 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C9DCEF
oklch(88.6% 0.033 248.2)
-
Step 300
300
#A3C5E7
oklch(81% 0.061 248.6)
-
Step 400
400
#70A6DA
oklch(70.8% 0.096 248.4)
-
Step 500
500
#478ED1
oklch(63.1% 0.124 249.2)
-
Step 600
600
#2477BE
oklch(55.6% 0.135 249)
-
Step 700
700 (this color)
#1765A5
oklch(49.5% 0.125 248.9)
-
Step 800
800
#165285
oklch(42.8% 0.103 248.9)
-
Step 900
900
#1A446A
oklch(37.7% 0.08 248.9)
-
Step 950
950
#10283E
oklch(27% 0.051 248.4)
#1765A5 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) | #4669A8 | 0.042 |
| Deuteranopia (no green cones) | #305CA4 | 0.027 |
| Tritanopia (no blue cones) | #00747D | 0.089 |
| Achromatopsia (no color) | #626262 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1765A5
#1765A5
oklch(49.5% 0.125 248.9)
- #895500
#895500
oklch(49.7% 0.108 69.3)
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 #1765A5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.028
- Peacock Blue #016795 ΔE 0.029
- Ocean Blue #03719C ΔE 0.041
- Denim Blue #3B5B92 ΔE 0.042
- French Blue #436BAD ΔE 0.043
- Denim #3B638C ΔE 0.045
- Dusky Blue #475F94 ΔE 0.045
- Muted Blue #3B719F ΔE 0.049
Use #1765A5 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.