#165DB4
Closest named color: Mid Blue (#276AB3). oklch(48.7% 0.154 256.6), rgb(22, 93, 180).
Aa
White text reads best on this color (6.44:1).
About this color
#165DB4 is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.154 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.040 away. White text reads best on it, at 6.44:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.154) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.25:1 |
| White text | 6.44:1 |
Values
| HEX | #165DB4 |
| RGB | rgb(22, 93, 180) |
| HSL | hsl(213, 78%, 40%) |
| OKLCH | oklch(48.7% 0.154 256.6) |
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 #165DB4 | 6.44:1 | AA | Lc -86.5 | Fine for body text |
| Black text on #165DB4 | 3.25:1 | AA large text | Lc 22.6 | Dividers and decoration only |
| #165DB4 text on white | 6.44:1 | AA | Lc 81.4 | Fine for body text |
| #165DB4 text on black | 3.25:1 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF9
oklch(93.7% 0.022 256.7)
-
Step 200
200
#C8DBF5
oklch(88.5% 0.041 256.2)
-
Step 300
300
#A2C3F1
oklch(80.9% 0.075 256.7)
-
Step 400
400
#6EA2EA
oklch(70.6% 0.12 256.7)
-
Step 500
500
#4689E3
oklch(63% 0.152 256.6)
-
Step 600
600
#2671D1
oklch(55.6% 0.165 256.6)
-
Step 700
700 (this color)
#165DB4
oklch(48.7% 0.154 256.6)
-
Step 800
800
#174D93
oklch(42.6% 0.128 256.9)
-
Step 900
900
#1A4175
oklch(37.7% 0.099 256.7)
-
Step 950
950
#102644
oklch(26.8% 0.063 256.8)
#165DB4 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) | #2A66B7 | 0.030 |
| Deuteranopia (no green cones) | #0058B2 | 0.017 |
| Tritanopia (no blue cones) | #007280 | 0.115 |
| Achromatopsia (no color) | #5E5E5E | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #165DB4
#165DB4
oklch(48.7% 0.154 256.6)
- #805600
#805600
oklch(48.7% 0.102 76.1)
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 #165DB4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.040
- Denim Blue #3B5B92 ΔE 0.059
- French Blue #436BAD ΔE 0.059
- Peacock Blue #016795 ΔE 0.062
- Dusk Blue #26538D ΔE 0.065
- Dusky Blue #475F94 ΔE 0.066
- Light Navy Blue #2E5A88 ΔE 0.071
- Blue Blue #2242C7 ΔE 0.072
Use #165DB4 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.